Crossword Genius

He alone is happy (6)

Ross

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6

7

hermit

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'he alone is happy' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.

'he' is the wordplay.
I cannot really understand how this works, but
'he' is found in the answer.
This explanation may well be incorrect...

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(Other definitions for hermit that I've seen before include "Solitary person, anchorite" , "Kind of crab that lives in a cast-off shell" , "Solitary dweller" , "One lives in solitude for religious reasons" , "A recluse or a crab" .)

I've seen this clue in The Globe and Mail.
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