Crossword Genius

Consumed fancy pté sandwiches you heard (3,2)

Ross

I believe the answer is:

ate up

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

'consumed' is the definition.
(I've seen this in another clue)

'fancy pte sandwiches you heard' is the wordplay.
I cannot really see how this works, but
'you' could be 'u' (homophones) and 'u' is present in the answer.
an anagram of 'pte' is 'tep' which is located in the left over letters.
A single letter 'a' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for ate up that I've seen before include "Absorbed" , "preoccupied" , "Squandered" .)

I've seen this clue in The Times.
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