*Road goo (4)

I think it could be either:

Which length description are you looking for?:

tar

'road goo' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for tar that I've seen before include "Seaman; pitch" , "Sailor (colloq.)" , "Familiar sailor - what a rat" , "prepare for feathers?" , "Dark viscous stuff" .)

I've seen this clue in the USA Today, The New York Times, the LA Times and the King Feature Syndicate.

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