A bag of broken latches (7)
I believe the answer is:
satchel
'a bag' is the definition.
(I've seen this before)
'broken latches' is the wordplay.
'broken' is an anagram indicator.
'latches' is an anagram of 'SATCHEL'.
'of' acts as a link.
(Other definitions for satchel that I've seen before include "Bag -- latches (anag)" , "Text mark for an insertion" , "What's carried by pupils" , "Bag for school books" , "Schoolbag found in chalets" .)