Unusual bit of syncopation (7)
I believe the answer is:
offbeat
'unusual' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for offbeat that I've seen before include "Unusual, not ordinary - or rhythmic" , "Weird - irregular" , "Wacky, eccentric" , "Wacky; syncopated" , "Bohemian" .)