### Clue: Tory uncertainty brought about negative effect for sure (9)
### Answer: CONFIDENT 
 ### Explanation: Definition: sure
 CON(abbrev. for a member of the Conservative Party, a Tory) + **reversal of**(… brought about) IF(an uncertainty/a supposition, as in "there are too many ifs in the proposal") + DENT(a negative effect/a little damage, as in "he suffered a dent to his self-confidence").