Crossword Genius

At all his ten late shifts ... (2,3,5)

Ross

I believe the answer is:

in the least

'at all' is the definition.
(synonyms)

'his ten late shifts' is the wordplay.
'shifts' indicates anagramming the letters.
'his'+'ten'+'late'='histenlate'
'histenlate' with letters rearranged gives 'IN THE LEAST'.

I've seen this clue in The Telegraph.
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