Crossword Genius

With a big arm, hugging again (5)

Ross

I believe the answer is:

great

I'm a little stuck... Click here to teach me more about this clue!

'with a big' is the definition.
I can't tell whether this definition defines the answer.

'arm hugging again' is the wordplay.
'arm' becomes 'gat' (gat is a kind of arm).
'hugging' means one lot of letters goes inside another (outside letters hug or embrace inside letters).
'again' becomes 're' (prefix meaning 'again').
'gat' placed around 're' is 'GREAT'.

Can you help me to learn more?

(Other definitions for great that I've seen before include "Large, important" , "Excellent (colloq.)" , "Terrific" , "Mum's dad's mum, for example" , "Dickens novel about Pip" .)

I've seen this clue in the Evening Standard.
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