Hardly occupied with loot (1,6)
I believe the answer is:
a trifle
'hardly' is the definition.
(both can mean slightly or to a small extent)
'occupied with loot' is the wordplay.
'occupied' becomes 'at' (being occupied or busy at something).
'with' means one lot of letters go next to another.
'loot' becomes 'rifle' (I've seen this in another clue).
'at'+'rifle'='A TRIFLE'
(Other definitions for a trifle that I've seen before include "Slightly" , "somewhat" .)