Dates may be seen around here (3,3,3)
I believe the answer is:
the red sea
'dates may be seen around here' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'dates may be seen around here' is the wordplay.
'may be' indicates anagramming the letters.
'seen around' indicates putting letters inside.
'dates' with letters rearranged gives 'tdsea'.
'tdsea' placed around 'here' is 'THE RED SEA'.
Can you help me to learn more?
(Another definition for the red sea that I've seen is " Body of water".)