Fires in bags? (5)
I believe the answer is:
sacks
I believe this clue is a double definition.
'fires' is the first definition.
(I know this)
'bags?' is the second definition.
(sack is a kind of bag)
'in' is the link.
(Other definitions for sacks that I've seen before include "Terminates employment as punishment" , "Large strong bags" , "Plunders; fires" , "Raids; boots out" , "sends up in flames" .)