Out-of-head rock singer repelled online icon (6)

I believe the answer is:

avatar

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'online icon' is the definition.
(I've seen this in another clue)

I cannot understand how the rest of the clue works.

(Other definitions for avatar that I've seen before include "New personification of a familiar idea" , "Screen icon" , "Incarnation; film (2009)" , "Visual manifestation of something abstract" , "Archetype" .)

I've seen this clue in The Independent.

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