Outline drawing (6)

I think it could be either:

Which length description are you looking for?:

sketch

'outline drawing' is the definition.
(I've seen this before)

This is all the clue.

(Other definitions for sketch that I've seen before include "An outline drawing or a comedy number" , "result of quick draw?" , "Basic drawing" , "Short humorous scene" , "Small sailing boat" .)

I've seen this clue in The Guardian and The Irish Times.

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