Music from eastern half of US state (3)
I believe the answer is:
ska
'music' is the definition.
(music genre)
'half of us state' is the wordplay.
'half of' suggests halving the letters.
'us state' becomes 'alaska' (I've seen this before).
'alaska' with half the letters taken is 'SKA'.
'from eastern' acts as a link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for ska that I've seen before include "Music genre" , "Noted genre" , "Jamaican music style" , "popular music" , "Dancehall music" .)