Hint wound around crime mystery (9)
I believe the answer is:
whodunnit
'crime mystery' is the definition.
'whodunnit' can be an answer for 'mystery' (I have seen 'literary mystery' mean 'whodunnit' so perhaps 'mystery' could also mean 'whodunnit'). I also know that 'crime' relates to this answer.
'hint wound around' is the wordplay.
'around' indicates anagramming the letters.
'hint'+'wound'='hintwound'
'hintwound' anagrammed gives 'WHODUNNIT'.
(Other definitions for whodunnit that I've seen before include "book" , "literary mystery" , "crime novel" , "Detective story" , "Mystery drama" .)