Partners smuggling crack before arrest for kind of crime (5-6)
I believe the answer is:
white-collar
'kind of crime' is the definition.
(I've seen this in another clue)
'partners smuggling crack before arrest' is the wordplay.
'partners' becomes 'we' (West and East are partners in the game bridge).
'smuggling' is an insertion indicator (some letters smuggled inside).
'crack before' becomes 'hit' (crack can mean a hit or blow. I am not sure about the 'before' bit.).
'arrest' becomes 'collar-' (synonyms).
'we' enclosing 'hit' is 'white'.
'white'+'collar'='WHITE-COLLAR'
'for' is the link.
(Other definitions for white-collar that I've seen before include "Pertaining to salaried professional" , "Designating those other than manual workers" , "Relating to non-manual workers" .)