New aim - leave friend abroad (5)
I believe the answer is:
amigo
'friend abroad' is the definition.
(I've seen this before)
'new aim leave' is the wordplay.
'new' is an anagram indicator.
'leave' becomes 'go' (to go is to depart or leave).
'aim' with letters rearranged gives 'ami'.
'ami'+'go'='AMIGO'
(Other definitions for amigo that I've seen before include "Quixote's friend" , "friend from Barcelona" , "Spanish word meaning friend" , "Mate in Madrid?" , "friend abroad" .)