Stone lies around in Ireland (7,4)
I believe the answer is:
emerald isle
'ireland' is the definition.
(synonyms)
'stone lies around in' is the wordplay.
'stone' becomes 'emerald' (type of gemstone).
'around' is an anagram indicator.
'in' means one lot of letters goes inside another.
'lies' is an anagram of 'isle'.
'emerald' put inside 'isle' is 'EMERALD ISLE'.
(Other definitions for emerald isle that I've seen before include "divided country" , "jewel of a place" , "Name for Ireland" , "where one might get whiskey" .)