Agrees with proposal for more to eat (7)
I believe the answer is:
seconds
'agrees' is the definition.
Although both the answer and definition are verbs in their -s form, I don't see how they can define each other.
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for seconds that I've seen before include "They should be present at a duel" , "Endorses proposal" , "More food!" , "Supporters - they are blemished" , "Short periods of time for supporters" .)