Worker in charge of small acts of horseplay (6)
I believe the answer is:
antics
'acts of horseplay' is the definition.
'antics' can be an answer for 'horseplay' (I've seen this in another clue). I am not certain of the 'acts of' bit.
'worker in charge of small' is the wordplay.
'worker' becomes 'ant' (worker is a type of ant).
'in charge of' becomes 'ic'.
'small' becomes 's' (abbreviation - e.g. clothes size).
'ant'+'ic'+'s'='ANTICS'
Can you help me to learn more?
(Other definitions for antics that I've seen before include "Clowning" , "Absurd tricks or pranks" , "Cat's in (anag.)" , "Funny movements and foolish behaviour" , "comical capers" .)