Crossword Genius

Divide up complete set of Genesis Numbers etc? (5)

Ross

I believe the answer is:

allot

'divide up' is the definition.
(I've seen this in another clue)

'complete set of genesis numbers etc?' is the wordplay.
I cannot quite understand how this works, but
'complete' could be 'all' (similar in meaning) and 'all' is found within the answer.
'of' could be 'o' and 'o' is found within the answer.
A single letter 't' remains which might be clued in a way I don't see.
This explanation may well be incorrect...

(Other definitions for allot that I've seen before include "Ration" , "Apportion, share" , "Distribute, give as share" , "Dedicate" , "Give as a share, or a task to be done" .)

I've seen this clue in The Times.
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