Man saves pence for tinned meat (4)
I believe the answer is:
spam
'for tinned meat' is the definition.
(tinned meat product)
'man saves pence' is the wordplay.
'man' becomes 'sam' ().
'saves' indicates putting letters inside.
'pence' becomes 'p'.
'sam' placed around 'p' is 'SPAM'.
(Other definitions for spam that I've seen before include "unsolicited communication" , "Unwanted e-mails" , "Food" , "Computer junk mail" , "Electronic junk mail" .)