Two irrational figures making food, in case (3)
I believe the answer is:
pie
'food in case' is the definition.
'pie' can be an answer for 'food' (pie is a kind of food). I'm not sure about the 'in case' bit.
'two irrational figures' is the wordplay.
I cannot really see how this works, but
'irrational' could be 'pi' (an irrational number) and 'pi' is found within the answer.
A single letter 'e' remains which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
'making' is the link.
Can you help me to learn more?
(Other definitions for pie that I've seen before include "where blackbirds sang" , "In the sky, this dish is impractical" , "In the sky, it's an empty promise" , "Type of chart" , "Very easy answer as" .)