Crossword Genius

Centre half in home game is fab (4)

Ross

I believe the answer is:

mega

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

'centre half' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'home game is fab' is the wordplay.
'game' can be anagrammed to 'MEGA'.
But, I'm not sure how this is indicated.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for mega that I've seen before include "Fantastic!" , "Very large (colloq.)" , "wicked" , "As brilliant" , "Terrific" .)

I've seen this clue in The Guardian.
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