Working uptown, crew expanded (3,2,6)

I believe the answer is:
put on weight
'working uptown crew expanded' is the definition.
I can't judge whether this definition defines the answer.
'working uptown crew' is the wordplay.
'working' indicates anagramming the letters.
'crew' becomes 'eight' (an eight-person rowing team).
'uptown' is an anagram of 'putonw'.
'putonw'+'eight'='PUT ON WEIGHT'
Can you help me to learn more?
I've seen this clue in The Times.
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