Aunt cooked fish (4)

I believe the answer is:

tuna

'fish' is the definition.
(tuna is a type of fish)

'aunt cooked' is the wordplay.
'cooked' indicates anagramming the letters (letters cooked into a new form).
'aunt' is an anagram of 'TUNA'.

(Other definitions for tuna that I've seen before include "swimmer" , "Large tasty fish, fond of a nut" , "Fish; edible cactus" , "Large sea-fish" , "Skipjack --, blue-fin --" .)

I've seen this clue in The Times, The Hindu and The Globe and Mail.

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