Case of veal is lost (6)
I believe the answer is:
valise
'case' is the definition.
(valise is a kind of case)
'veal is lost' is the wordplay.
'lost' indicates an anagram.
'veal'+'is'='vealis'
'vealis' is an anagram of 'VALISE'.
'of' acts as a link.
(Other definitions for valise that I've seen before include "Elvis A? (anag)" , "Overnight case" , "Small overnight bag" , "Travel bag" , "A small suitcase for Leavis" .)