Cultivate dates here where there's plenty of water (3,3,3)
I believe the answer is:
the red sea
'water' is the definition.
(I know that The red sea is a sea)
'cultivate dates here' is the wordplay.
'cultivate' is an anagram indicator (I've seen 'cultivating' mean this).
'dates'+'here'='dateshere'
'dateshere' with letters rearranged gives 'THE RED SEA'.
'where there's plenty of' is the link.
This may not be correct. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Another definition for the red sea that I've seen is " Body of water".)