Crossword Genius

Has to move a long way back for descendants of Muhammad (6)

Ross

I believe the answer is:

ashraf

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'descendants of muhammad' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'has to move a long way back' is the wordplay.
'to move' is an anagram indicator.
'a long way' becomes 'far' (I've seen this before).
'back' says the letters should be written in reverse.
'far' backwards is 'raf'.
'has' anagrammed gives 'ash'.
'ash'+'raf'='ASHRAF'

'for' is the link.

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