Something wrong swallowing hot piece of beef (4)
I believe the answer is:
shin
'piece of beef' is the definition.
(shin is a cut of beef)
'something wrong swallowing hot' is the wordplay.
'something wrong' becomes 'sin' (something morally wrong).
'swallowing' indicates putting letters inside.
'hot' becomes 'h' (abbreviation eg on taps).
'sin' enclosing 'h' is 'SHIN'.
(Other definitions for shin that I've seen before include "kick" , "Cut of beef; part of leg" , "Part of the lower leg" , "Part of the human leg" , "piece of beef" .)