A new banknote’s to be announced, one feels (7)
I believe the answer is:
antenna
'one feels' is the definition.
(an antenna feels things)
'a new banknote's to be announced' is the wordplay.
I cannot quite understand how this works, but
'a' could be 'an' and 'an' is found in the answer.
'new' could be 'n' (common abbreviation eg NT for New Testament) and 'n' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for antenna that I've seen before include "could send out a message" , "Insect's feeler" , "What detects signals" , "Feeling part" , "Feature of dish" .)