Crossword Genius

Is no garment superior to this one? (7)

Ross

I believe the answer is:

overall

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'is no garment superior to this one?' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?

'superior to this one?' is the wordplay.
'superior to' becomes 'over' (I've seen this in another clue).
'this one?' becomes 'all' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'over'+'all'='OVERALL'

Can you help me to learn more?

(Other definitions for overall that I've seen before include "sweeping?" , "Dungarees" , "Taking everything into account" , "Taken as a whole" , "All round" .)

I've seen this clue in the Evening Standard.
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