Bobby grabbing hot meat slice (4)
I believe the answer is:
chop
'meat slice' is the definition.
'bobby grabbing hot' is the wordplay.
'bobby' becomes 'cop' (I've seen this in other clues).
'grabbing' means one lot of letters goes inside another.
'hot' becomes 'h' (common abbreviation eg on taps).
'cop' going around 'h' is 'CHOP'.
(Other definitions for chop that I've seen before include "Dissect" , "Cutting blow" , "Hew" , "Reduce drastically" , "Abolish, cut of meat" .)