Informal road is a nuisance (4)

I believe the answer is:

drag

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This clue might be a double definition.

'informal road' is the first definition.
'drag' can be an answer for 'road' (thesaurus). I am not certain of the 'informal' bit.

'nuisance' is the second definition.
(thesaurus)

'is a' acts as a link.

Can you help me to learn more?

(Other definitions for drag that I've seen before include "pain" , "Short smoke" , "Become tedious" , "Haul - a bore!" , "Yank" .)

I've seen this clue in The Mirror.

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