Composer having a piece of meat at home (6)
I believe the answer is:
chopin
'composer' is the definition.
(Frederic Chopin)
'a piece of meat at home' is the wordplay.
'a piece of meat' becomes 'chop' (e.g. a lamb chop).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'chop'+'in'='CHOPIN'
'having' is the link.
(Other definitions for chopin that I've seen before include "Frederic . . . . . ., great Polish composer-pianist" , "Polish pianist-composer" , "Polish composer who had affair with George Sand" , "popular composer" , "Romantic figure" .)