Crossword Genius

Reverse just defeat over English? Missile launcher found (8)

Ross

I believe the answer is:

blowpipe

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'missile launcher found' is the definition.
I can't tell whether this definition defines the answer.

'reverse just defeat over english?' is the wordplay.
'reverse' becomes 'blow' (blow can mean to undo or reverse).
'just defeat' becomes 'pip' (as in pipping someone to the post).
'over' says to put letters next to each other (in a down clue, some letters go over others).
'english?' becomes 'e' (abbreviation as in OED).
'blow'+'pip'+'e'='BLOWPIPE'

Can you help me to learn more?

(Other definitions for blowpipe that I've seen before include "Tubular weapon" , "Use it to shape glass" , "Weapon akin to peashooter" , "Tube through which a poisoned dart may be shot" , "Tube for hurling darts" .)

I've seen this clue in The Times.
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