Boy eating duck in no time at all (4)
I believe the answer is:
soon
'no time at all' is the definition.
I can't tell whether this definition defines the answer.
'boy eating duck' is the wordplay.
'boy' becomes 'son' (male child).
'eating' indicates putting letters inside.
'duck' becomes 'o' (resembles zero - 'duck' in cricket).
'son' going around 'o' is 'SOON'.
'in' acts as a link.
Can you help me to learn more?
(Other definitions for soon that I've seen before include "Willingly" , "Presently" , "Early; readily" , "in a minute" , "In the near future" .)