Rage over boundless water and continent (9)
I believe the answer is:
temperate
'continent' is the definition.
(I've seen this before)
'rage over boundless water' is the wordplay.
'rage' becomes 'temper' (temper means anger or rage).
'over' is a charade indicator (letters next to each other).
'boundless' indicates the central letters (the limits or bounds of the word are removed).
The middle of 'water' is 'ate'.
'temper'+'ate'='TEMPERATE'
'and' is the link.
(Other definitions for temperate that I've seen before include "pleasant" , "Showing self-restraint" , "sober" , "It is reasonable" , "Showing moderation" .)