Wee, informally (4)

I think it could be either:

Which length description are you looking for?:

lil

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

This is the entire clue.

(Another definition for lil that I've seen is " 'Diamond - - ', 17's Broadway hit".)

I've seen this clue in The New York Times.

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