Bishop at home in container (3)
I believe the answer is:
bin
'container' is the definition.
(bin is a type of container)
'bishop at home' is the wordplay.
'bishop' becomes 'B' (chess abbreviation).
'at home' becomes 'in' ('I'm in' can mean 'I'm at home').
'b'+'in'='BIN'
'in' acts as a link.
(Other definitions for bin that I've seen before include "Receptacle for kitchen rubbish" , "Storage container" , "Domestic receptacle for rubbish" , "Waste container" , "Graves seen here" .)