Crossword Genius

Doesn't finish some panda food (6)

Ross

I believe the answer is:

leaves

I'm a little stuck... Click here to teach me more about this clue!

'doesn't finish some panda' is the definition.
I can't tell whether this defines the answer.

'food' is the wordplay.
I cannot quite understand how this works, but
'food' could be 'e' (E is an example) and 'e' is present in the answer.
The remaining letters 'laves' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

(Other definitions for leaves that I've seen before include "Doesn't eat" , "Steps out of" , "Departs with what fall in the Fall" , "Pour hot fat over (meat)" , "they add to a bed, as > does a bunk" .)

I've seen this clue in The Guardian.
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