Crossword Genius

Day-long channel (5)

Ross

I believe the answer is:

ditch

'channel' is the definition.
(thesaurus)

'day-long' is the wordplay.
'day' becomes 'd'.
'long' becomes 'itch' (I've seen this before).
'd'+'itch'='DITCH'

(Other definitions for ditch that I've seen before include "Get rid of; dug channel" , "Abandon; one dug" , "Moat" , "give up" , "Narrow channel" .)

I've seen this clue in The Times.
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