* New party backs reduction of debt, corruption crackdown
* Led by ex-TV presenter, self-described political neophyte
* Analysts see populist streak
By Jan Lopatka
PRAGUE, May 30 (Reuters) - An obscure Czech party which rode a wave of public anger with politicians to win 10.9 percent of the vote in a weekend election has emerged as an unlikely kingmaker in negotiations on forming a new government.
Public Affairs, which was founded in 2001 but whose activities were largely confined to local Prague politics until recently, has now started talks with the right-wing Civic Democrats and TOP09 parties after they jointly won 118 seats in the 200-strong lower house this weekend.
Its presence has injected an element of uncertainty into the negotiations.
The party has an agenda which ranges from demands for big budget savings and reforms of the pension and health systems to plans to hike teachers' pay and bring transparency to public procurement tenders.
It can be right or left, depending on what it thinks is best, says its chairman Radek John, a 55-year old writer and former popular television presenter.
"This is clearly a party that plays to people's emotions, its entire campaign was focused on that," said political analyst Vladimira Dvorakova.
John's blunt talk and calls for rooting out corruption and crime have caught on among Czechs, tired of a seemingly endless string of graft scandals in the mainstream parties.
The party, which was running in its first national election, plans to cut public debt and clean up the state procurement system, saying it is closer to the political right on those issues.
But when pressed on concrete policies, John and other party officials are less clear.
NEOPHYTE
"I am a political neophyte," he acknowledged in a TV discussion with the leaders of the other parties on Sunday.
In the roundtable, he appeared to back away from a number of his party's pledges in the debate, such as a proposal to save money by merging the interior and defence ministries -- a plan rejected by other parties.
Jahn was tripped up by moderator in the discussion, being told that the number of clerks in public service was three times lower than what John had said it was. Therefore a 10 percent cut in their number proposed by the party would save less.
"Really? Then the savings will be somewhat less than we had expected," he said.
The party raised eyebrows by sending teams into the streets of Prague to ask drug addicts and homeless people leave public areas -- but it quickly halted the plan when criticism grew.
The party supports direct democracy, and lets anybody who registers on the Internet as a supporter vote on party policies.
Its anti-graft credentials have also been questioned. Czech media and rival politicians have speculated the party is a product of Prague businessmen who wanted to gain influence, an accusation the party denies. (Reporting by Jan Lopatka; Editing by Noah Barkin)