Criticise a change of direction in hearing (6)
I believe the answer is:
attack
'criticise' is the definition.
(I know that attack is a kind of criticise)
'a change of direction in hearing' is the wordplay.
I cannot really see how this works, but
'a' is within the answer.
'change' could be 'tack' (tack is a kind of change) and 'tack' is present in the answer.
A single letter 't' remains which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for attack that I've seen before include "Offensive action" , "Brownish pigment" , "Offensive move" , "Start a fight or criticise strongly" , "Go on the offensive" .)