Member, a Tory leader, with European envoy (6)
I believe the answer is:
legate
'envoy' is the definition.
(legate is a kind of envoy)
'member a tory leader with european' is the wordplay.
'member' becomes 'leg' (I've seen this before**).
'tory leader' becomes 't' (I've seen this in other clues).
'with' is a charade indicator (letters next to each other).
'european' becomes 'e' (abbreviation e.g. EU).
'leg'+'a'+'t'+'e'='LEGATE'
(Other definitions for legate that I've seen before include "Late, eg. for the papal representative" , "Envoy - pope's representative" , "Official representative" , "Envoy, maybe papal" , "Official emissary" .)