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Several getting by, supported by deliveries repeatedly (4,5,4)

Ross

I believe the answer is:

many times over

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'repeatedly' is the definition.
(thesaurus)

'several getting by supported by deliveries' is the wordplay.
'several getting' becomes 'many' (I can't explain this - if you can you should give a lot more credence to this answer).
'by' becomes 'times' ('times' can mean multiplied by).
'supported by' says to put letters next to each other (in a down clue, some letters hold up others).
'deliveries' becomes 'over' (a cricket over consists of six deliveries).
'many'+'times'+'over'='MANY TIMES OVER'

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I've seen this clue in The Guardian.
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