Take the plunge with cricketer here on vacation (5)
I believe the answer is:
bathe
'take the plunge' is the definition.
'with cricketer here on vacation' is the wordplay.
'with' is a charade indicator (letters next to each other).
'cricketer' becomes 'bat' (I've seen this before).
'on vacation' suggests removing the centre.
'here' with its centre taken out is 'he'.
'bat' put next to 'he' is 'BATHE'.
(Other definitions for bathe that I've seen before include "Cleanse the body" , "spend time in the water" , "Immerse in liquid for wash" , "Suffuse" , "Swim or dip" .)