Wholesale squabbling man sees (2,5)

I believe the answer is:

en masse

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'wholesale' is the definition.
(both can mean as a group)

'squabbling man sees' is the wordplay.
'man sees' can be anagrammed to 'EN MASSE'.
Though, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for en masse that I've seen before include "All together - in France (2.5)" , "Sees man (anag.)" , "In force" , "All together (Fr.)" , "All together as a group" .)

I've seen this clue in The Sun.

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