A regular elbow bender (3)

I believe the answer is:

sot

I'm a little stuck... Click here to teach me more about this clue!

'elbow bender' is the definition.
(I've seen this in another clue)

I can't explain the remainder of the clue.

(Other definitions for sot that I've seen before include "Habitual drunkard" , "Boozer" , "A chronic drinker" , "One's often intoxicated" , "Toper" .)

I've seen this clue in the Evening Standard.

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