Weapons don't hit revolutionary isle (8)
I believe the answer is:
missiles
'weapons' is the definition.
(missile is a kind of weapon)
'don't hit revolutionary isle' is the wordplay.
'don't hit' becomes 'miss' (I've seen this before).
'revolutionary' indicates an anagram.
'isle' anagrammed gives 'iles'.
'miss'+'iles'='MISSILES'
(Other definitions for missiles that I've seen before include "Projectiles" , "Projected weapons" , "Things thrown or shells fired" .)