Ducks, on leaving area, climbed in the air? (6)
I believe the answer is:
zeroes
'ducks on leaving area climbed in the air?' is the definition.
I can't tell whether this defines the answer.
'ducks on leaving area' is the wordplay.
'ducks' becomes 'zeros' (I've seen this before).
'on' is an insertion indicator (as in clothing 'on' a person).
'leaving area' becomes 'e' (I can't justify this - if you can you should believe this answer much more).
'zeros' placed around 'e' is 'ZEROES'.
Can you help me to learn more?
(Another definition for zeroes that I've seen is " Noughts".)