Before noon I leave to see a friend in Spain (5)
I believe the answer is:
amigo
'a friend in spain' is the definition.
(I've seen this in another clue)
'before noon i leave' is the wordplay.
'before noon' becomes 'AM' (as in AM on a clock).
'leave' becomes 'go' (to go is to depart or leave).
'am'+'i'+'go'='AMIGO'
'to see' acts as a link.
(Other definitions for amigo that I've seen before include "Hispanic comrade" , "Friend from Spain?" , "Friend in Spanish-speaking areas" , "Pal from Madrid?" , "Friend in Spanish-speaking area" .)