Redirect frogman on time (6)
I believe the answer is:
divert
'redirect' is the definition.
(thesaurus)
'frogman on time' is the wordplay.
'frogman' becomes 'diver' ('diver' can be a synonym of 'frogman').
'on' is a charade indicator (letters next to each other).
'time' becomes 't'.
'diver'+'t'='DIVERT'
(Other definitions for divert that I've seen before include "Amuse or cause to change direction" , "Deflect - amuse" , "Entertain; reallocate" , "Amuse or re-route" , "Distract" .)