Surrounded by cultivated mango (5)
I believe the answer is:
among
'surrounded by' is the definition.
(I've seen this before)
'cultivated mango' is the wordplay.
'cultivated' indicates an anagram.
'mango' is an anagram of 'AMONG'.
(Other definitions for among that I've seen before include "In an assembly of" , "In the midst of (others)" , "Within" , "when in company" , "Amidst" .)