Man, say, in silver, oddly (4)
I believe the answer is:
isle
'man say' is the definition.
(Isle of Man is an example)
'in silver oddly' is the wordplay.
'oddly' indicates alternate letters (letters in odd-numbered positions).
'in'+'silver'='insilver'
The alternate letters of 'insilver' are 'ISLE'.
(Other definitions for isle that I've seen before include "Body of land surrounded by water" , "See 10 Down" , "somewhere surrounded by water" , "Lies (anag)" , "Dogs, say" .)