Crossword Genius

Rail in bar set to break (8)

Ross

I believe the answer is:

banister

'rail' is the definition.
(banister is a kind of rail)

'in bar set to break' is the wordplay.
'to break' indicates anagramming the letters.
'in'+'bar'+'set'='inbarset'
'inbarset' anagrammed gives 'BANISTER'.

(Other definitions for banister that I've seen before include "Upright supporting handrail of stairs" , "support at hand on flight" , "Staircase handrail" , "Staircase railing" , "Stair rail" .)

I've seen this clue in The Times.
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