Be adjacent to (4)

I think it could be either:

Which length description are you looking for?:

9 4*

'be adjacent to' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for abut that I've seen before include "Be next to -- share a boundary" , "Adjoin at one end" , "Adjoin -- 19 (rev)" , "Tuba (anag)" , "Touch, lean on" .)

I've seen this clue in the Penny Press, The Guardian, The New York Times, the USA Today, the Newsday and The Mirror.

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