Hundred taken away from revised account, but he still has a big bill (6)
I believe the answer is:
toucan
'hundred taken away from revised account but he still has a big bill' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'from revised account but he still has a big bill' is the wordplay.
I cannot really understand how this works, but
'from' could be 'o' (I've seen this in other clues) and 'o' is present in the answer.
'account' could be 'ca' (I've seen this in other clues) and 'ca' is located in the answer.
The remaining letters 'tun' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for toucan that I've seen before include "arboreal dweller" , "exotic bird" , "Large-billed tropical bird" , "Brightly-coloured tropical bird with large beak" , "Bird with a large brightly-coloured bill" .)