Dexterous man caught resisting (7)
I believe the answer is:
defiant
'resisting' is the definition.
(thesaurus)
'dexterous man caught' is the wordplay.
'dexterous' becomes 'deft' (synonyms).
'man' becomes 'ian' (man's name).
'caught' means one lot of letters goes inside another.
'deft' placed around 'ian' is 'DEFIANT'.
(Other definitions for defiant that I've seen before include "Mutinous" , "Fainted, being rebellious" , "Insubordinate" , "Open resistance" , "obstreperous" .)