Crossword Genius

Way chief shows formality (6)


I believe the answer is:


'formality' is the definition.
(being excessively formal or stiff)

'way chief' is the wordplay.
'way' becomes 'st' (abbreviation for street).
'chief' becomes 'arch' (synonyms).

'shows' is the link.

(Other definitions for starch that I've seen before include "Carbohydrate; stiffen" , "Reserve" , "Potato, rice constituent; a stiffener" , "foodstuff" , "Stiffening carbohydrate" .)

I've seen this clue in The Sun.
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