Crossword Genius

Porter perhaps is blocking that gangway (5)

Ross

I believe the answer is:

aisle

'gangway' is the definition.
('aisle' can be a synonym of 'gangway')

'porter perhaps is blocking' is the wordplay.
'porter perhaps' becomes 'ale' (porter is a kind of ale).
'blocking' indicates putting letters inside.
'ale' going around 'is' is 'AISLE'.

'that' is the link.

(Other definitions for aisle that I've seen before include "Passageway between pews" , "Passage between seating blocks" , "The way to get married in church?" , "way to the altar?" , "Supermarket feature" .)

I've seen this clue in The Times.
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