Crossword Genius

Tube from what we hear must be avoided (6)

Ross

I believe the answer is:

ducked

'avoided' is the definition.
(ducking is a kind of avoiding)

'tube from what we hear' is the wordplay.
'tube' becomes 'duct' (I've seen this before).
'from what we hear' indicates a 'sounds like' (homophone) clue.
'duct' is a homophone of 'DUCKED'.

'must be' is the link.

(Other definitions for ducked that I've seen before include "was plunger?" , "Dipped" , "Avoided as mallard might" , "Went down" , "Bowed head to avoid missile" .)

I've seen this clue in The Telegraph.
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