Crossword Genius

Make several arrangements for each person unable to speak (7)

Ross

I believe the answer is:

permute

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'make several arrangements' is the definition.
(make several permutations)

'each person unable to speak' is the wordplay.
'each person' becomes 'per' (abbreviation. I am not sure about the 'each' bit.).
'unable to speak' becomes 'mute' (I've seen this before).
'per'+'mute'='PERMUTE'

'for' is the link.

Can you help me to learn more?

(Other definitions for permute that I've seen before include "Rearrange" , "Change sequence of" , "Shuffle order of" .)

I've seen this clue in The Guardian.
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