Jazz playing here on radio, thanks to you (4)
I believe the answer is:
utah
'jazz playing here' is the definition.
The answer is a location as well as being a singular noun. This is suggested by the definition.
'radio thanks to you' is the wordplay.
'radio thanks' becomes 'tah' (I can't justify this - if you can you should believe this answer much more).
'to' means one lot of letters go next to another (I've seen this in other clues).
'you' becomes 'u' (homophones).
'tah' put after 'u' is 'UTAH'.
'on' acts as a link.
Can you help me to learn more?
(Other definitions for utah that I've seen before include "The "Beehive" State, capital Salt Lake City" , "Bryce Canyon US state" , "Mormon US state" , "Brigham Young state" , "A hut for the Mormons, oddly" .)