A dame from overseas (6)
I believe the answer is:
abroad
'overseas' is the definition.
(synonyms)
'a dame' is the wordplay.
'dame' becomes 'broad' (I've seen this before).
'a'+'broad'='ABROAD'
'from' is the link.
(Other definitions for abroad that I've seen before include "Away from home" , "Away in another country" , "in the field" , "Stare lecherously at (someone)" , "Pole would be so" .)