Outstanding amateur (6)

I believe the answer is:

unpaid

I believe this is a double definition.

'outstanding' is the first definition.
(unpaid debts are still outstanding)

'amateur' is the second definition.
(I know that amateur can be written as unpaid)

(Other definitions for unpaid that I've seen before include "(Of debt) outstanding" , "Still owing" , "volunteer" , "Not give wages" , "Overdue" .)

I've seen this clue in The Times.

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