Hunted food on behalf of the elderly (7)
I believe the answer is:
foraged
'hunted food' is the definition.
'foraged' can be an answer for 'hunted' (foraging is a kind of hunting). I am not sure about the 'food' bit.
'on behalf of the elderly' is the wordplay.
'on behalf of' becomes 'for' (eg speaking on behalf of or for someone else).
'the elderly' becomes 'aged' (I've seen this before).
'for'+'aged'='FORAGED'
Can you help me to learn more?
(Other definitions for foraged that I've seen before include "Fear God (anag)" , "Plundered" , "Sought out food" , "Looked for food" .)