### Clue: Reverend backed when press finds nothing in church (9)
### Answer: HONORIFIC 
 ### Explanation: Definition: Reverend
 **Reversal of**(backed) < [ IF(when, as in "she purrs if;when I stroke her") + IRON(to press, eg. clothing) **plus**(finds) O(the letter signifying 0;nothing) ] **contained in**(in) CH(abbrev. for "church") > .
Answer: A title conveying respect, of which Reverend is an example.