Remove the outer cover from the missile (5)
I believe the answer is:
shell
I believe this clue is a quadruple definition!!
'remove' is the first definition.
(shelling is a kind of removing)
'the' acts as a link.
'outer' is the second definition.
Both the definition and answer are adjectives. Maybe you can see a link between them that I can't see?
'cover' is the third definition.
(shell is a kind of cover)
'from' is a link.
'the missile' is the fourth definition.
(I've seen this before)
Can you help me to learn more?
(Other definitions for shell that I've seen before include "Explosive projectile" , "Empty case" , "attack with bombs" , "Hard outer covering" , "multinational?" .)