Feature of island in meandering Delta (6)
I believe the answer is:
detail
'feature' is the definition.
(I have seen 'Small feature ' mean 'detail' so perhaps 'feature' could also mean 'detail')
'island in meandering delta' is the wordplay.
'island' becomes 'i'.
'in' means one lot of letters goes inside another.
'meandering' is an anagram indicator.
'delta' anagrammed gives 'detal'.
'i' put into 'detal' is 'DETAIL'.
'of' is the link.
(Other definitions for detail that I've seen before include "Unimportant area" , "Relate minutely" , "Special military group" , "Small section of a work of art" , "document?" .)