### Clue: Creationists' leader wrongly tried for belief (6)
### Answer: CREDIT 
 ### Explanation: Definition: belief
  C(first letter,*leader* of *Creationists'*) + anagram(*wrongly*) of TRIED.  Defn:  *Belief* in the truth, reliability, quality, etc, of someone or something, eg. "I would give credit to his statements".