Crossword Genius

Puff from old trains? (6)

Ross

I believe the answer is:

pastry

'puff' is the definition.
(thesaurus)

'old trains?' is the wordplay.
'old' becomes 'past' (associated in meaning).
'trains?' becomes 'ry' (abbreviation for railway).
'past'+'ry'='PASTRY'

'from' is the link.

(Other definitions for pastry that I've seen before include "Dough of flour, water and shortening" , "croissant?" , "Piecrust; small cake" , "Foodstuff flattened with a rolling pin" , "Cooked dough" .)

I've seen this clue in The Telegraph.
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