Crank party up with timeless tune (6)
I believe the answer is:
oddity
'crank' is the definition.
(thesaurus)
I don't understand the remainder of the clue.
Can you help me to learn more?
(Other definitions for oddity that I've seen before include "Curio, rarity" , "Toy did (anag.)" , "Curious item" , "Twelve months" , "Something peculiar or unusual" .)