Crossword Genius

Valve in vessels raised angle (8)

Ross

I believe the answer is:

stopcock

'valve' is the definition.
(I've seen this before)

'vessels raised angle' is the wordplay.
'vessels' becomes 'pots' (pot is a kind of vessel).
'raised' says the letters should be written backwards (going up in a down clue).
'angle' becomes 'cock' (as in a dog cocking his leg).
'pots' in reverse letter order is 'stop'.
'stop'+'cock'='STOPCOCK'

'in' is the link.

(Other definitions for stopcock that I've seen before include "Water controlled by this" , "Halt rooster with pipe valve" , "Water/gas supply valve" , "Desist, male bird! it's a valve in a pipe" , "Isolating valve in pipework" .)

I've seen this clue in The Guardian.
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