Underwater worker takes time to amuse
I believe the answer is:
divert
'amuse' is the definition.
(synonyms)
'underwater worker takes time' is the wordplay.
'underwater worker' becomes 'diver' (I've seen this before).
'takes time' becomes 't' (I've seen this in other clues).
'diver'+'t'='DIVERT'
'to' acts as a link.
(Other definitions for divert that I've seen before include "Entertain; reroute" , "Deflect - amuse" , "Find a different way" , "Deflect; entertain" , "Distract" .)