Bags to carry new light bites (6)
I believe the answer is:
snacks
'light bites' is the definition.
(I've seen this before)
'bags to carry new' is the wordplay.
'bags' becomes 'sacks' (sack is a kind of bag**).
'to carry' indicates putting letters inside.
'new' becomes 'n'.
'sacks' placed around 'n' is 'SNACKS'.
(Other definitions for snacks that I've seen before include "Light bites such as crisps" , "Light repasts" , "Small food amounts between main meals" , "Light informal meals" , "Nibbles" .)