Frogman with time to entertain (6)
I believe the answer is:
divert
'entertain' is the definition.
(diverting is a kind of entertaining)
'frogman with time' is the wordplay.
'frogman' becomes 'diver' ('diver' can be a synonym of 'frogman').
'with' is a charade indicator (letters next to each other).
'time' becomes 't'.
'diver'+'t'='DIVERT'
'to' acts as a link.
(Other definitions for divert that I've seen before include "Amuse, or turn from normal course" , "Amuse or send in another direction" , "Delight" , "Find a different way" , "offer entertainment" .)