Caught breaking convoluted rule for money (5)
I believe the answer is:
lucre
'money' is the definition.
(lucre is a kind of money)
'caught breaking convoluted rule' is the wordplay.
'caught' becomes 'c' (cricket abbreviation).
'breaking' indicates putting letters inside.
'convoluted' indicates an anagram.
'rule' anagrammed gives 'lure'.
'c' inserted within 'lure' is 'LUCRE'.
'for' acts as a link.
(Other definitions for lucre that I've seen before include "(Filthy) profit" , "Money (especially when gained dishonourably)" , "tin" , "ill-gotten gain" , "profits" .)