Start dancing on air, get to hold one (9)
I believe the answer is:
originate
'start' is the definition.
('originate' can be a synonym of 'start')
'dancing on air get to hold one' is the wordplay.
I cannot quite understand how this works, but
'on' could be 'at' (I've seen this in other clues) and 'at' is located in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found within the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for originate that I've seen before include "Stem" , "Found" , "Come into existence" , "Bring into existence" , "Arise, start" .)