Small plane's crew's using AM that cuts out at certain frequency (6)
I believe the answer is:
cessna
'plane's crew's using am that cuts out at certain frequency' is the definition.
I know nothing about this answer so I cannot tell whether this works.
'small' is the wordplay.
I cannot really see how this works, but
'small' could be 's' (abbreviation - e.g. clothes size) and 's' is found within the answer.
The remaining letters 'cesna' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for cessna that I've seen is " Long-established US aircraft company".)