Crossword Genius

Enlargement of fashionable pleat? (8)

Ross

I believe the answer is:

increase

'enlargement' is the definition.
(thesaurus)

'fashionable pleat?' is the wordplay.
'fashionable' becomes 'in' (in can mean fashionable or trendy).
'pleat?' becomes 'crease' (crease in a skirt).
'in'+'crease'='INCREASE'

'of' is the link.

(Other definitions for increase that I've seen before include "'Augment, expand (8)'" , "Grow, expand" , "Become greater in number" , "Addition, growth" , "Get bigger" .)

I've seen this clue in The Times.
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