A medium seen with woman from the States (7)
I believe the answer is:
america
'states' is the definition.
(I've seen this before)
'a medium seen with woman' is the wordplay.
'medium' becomes 'm' (as in UK clothing sizes).
'seen with' is a charade indicator (letters next to each other).
'woman' becomes 'erica' ().
'a'+'m'+'erica'='AMERICA'
'from the' is the link.
(Other definitions for america that I've seen before include "Camera I found in the continent" , "'Country named after Vespucci, Italian navigator (7)'" , "Song title shared by Sondheim-Bernstein and Paul Simon among others" , "Continent of the Western Hemisphere" , "Take care and aim for the continent" .)