Goes round providing entertainment (5)
I believe the answer is:
turns
'goes' is the definition.
(turning is a kind of going)
'round providing entertainment' is the wordplay.
'round' becomes 'turn' (synonyms).
'providing entertainment' becomes 's' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'turn'+'s'='TURNS'
Can you help me to learn more?
(Other definitions for turns that I've seen before include "Revolves" , "Rotates" , "Rotations" , "Bends" , "Starts" .)