Good Scottish man to avoid French island cruise? (6,7)
I believe the answer is:
guided missile
'cruise?' is the definition.
(as in a cruise missile)
'good scottish man to avoid french island' is the wordplay.
'good scottish' becomes 'guid' (Scottish version of 'good').
'man' becomes 'Ed' (short for Edward).
'to avoid' becomes 'miss' (miss can mean to avoid).
'french island' becomes 'ile' ('island' in French).
'guid'+'ed'+'miss'+'ile'='GUIDED MISSILE'
(Other definitions for guided missile that I've seen before include "Modern armament" , "Projectile" , "Military weapon" , "Homing-in-on-target rocket" .)