Crossword Genius

In Yorkshire town, large fruit’s guarantee of freshness? (4-2,4)

Ross

I believe the answer is:

sell-by date

'guarantee of freshness?' is the definition.
(something should be fresh on its sell-by date)

'in yorkshire town large fruit's' is the wordplay.
'in' indicates putting letters inside.
'yorkshire town' becomes 'selby' (Selby is a town in North Yorkshire).
'large' becomes 'L' (eg in clothes sizes).
'fruit' becomes 'date' (date is a kind of fruit).
'selby' enclosing 'l' is 'sellby'.
'sellby'+'date'='SELL-BY-DATE'

(Other definitions for sell-by date that I've seen before include "Mark on a perishable" , "Food shop marking" , "Perishable deadline" .)

I've seen this clue in The Times.
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