Criminal denied it if recognised (10)
I believe the answer is:
identified
'recognised' is the definition.
(identifying is a kind of recognizing)
'criminal denied it if' is the wordplay.
'criminal' indicates an anagram.
'denied'+'it'+'if'='denieditif'
'denieditif' with letters rearranged gives 'IDENTIFIED'.
(Other definitions for identified that I've seen before include "Given name" , "Recognised, named" , "Put one's finger on" , "Pointed out; made known" , "Recognized" .)