Heretic caught invading various locations (10)
I believe the answer is:
iconoclast
'heretic' is the definition.
(thesaurus)
'caught invading various locations' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'invading' means one lot of letters goes inside another.
'various' indicates an anagram.
'locations' with letters rearranged gives 'iconolast'.
'c' inserted within 'iconolast' is 'ICONOCLAST'.
(Other definitions for iconoclast that I've seen before include "Debunker of reputations" , "Critic of faith" , "A dissident" , "Challenging type" , "Rebel" .)