Help guitar player that's forgotten intro (6)

I believe the answer is:

assist

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'help' is the definition.
(to assist someone is to help them)

I cannot understand how the remainder of the clue works.

(Other definitions for assist that I've seen before include "Give help" , "Give aid" , "Provide aid, help out" , "Be useful to" , "providing help?" .)

I've seen this clue in The Independent.

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