Turn of livestock to be gutted, people (4)
I believe the answer is:
folk
'people' is the definition.
(informal term for people)
'turn of livestock to be gutted' is the wordplay.
'turn' is a reversal indicator.
'to be gutted' suggests removing the centre (to gut something is to remove its insides).
'livestock' with its middle taken out is 'lk'.
'of' in reverse letter order is 'fo'.
'fo'+'lk'='FOLK'
(Other definitions for folk that I've seen before include "People in general" , "People; type of music" , "Sort of music" , "Kind of music" , "[KINDRED]" .)