Crossword Genius

Sounds like rain as a rule (5)

Ross

I believe the answer is:

reign

'as a rule' is the definition.
(I've seen this before)

'sounds like rain' is the wordplay.
'sounds like' indicates a 'sounds like' (homophone) clue.
'rain' sounds like 'REIGN'.

(Other definitions for reign that I've seen before include "Period on the throne" , "Niger (anag)" , "Monarch's time in the job" , "Sit on a throne" , "period in power" .)

I've seen this clue in the Evening Standard.
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