Lettuce-eater possibly carries a weapon (6,8)
I believe the answer is:
rocket launcher
'weapon' is the definition.
(I've seen this before)
'lettuce-eater possibly carries a' is the wordplay.
I cannot really see how this works, but
'lettuce' could be 'rocket' (I have seen 'Projectile lettuce ' mean 'rocket' so perhaps 'lettuce' could also mean 'rocket') and 'rocket' is found in the answer.
'a' is within the answer.
'eater' could be 'luncher' (luncher is a kind of eater) and 'luncher' is present in the remaining letters.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for rocket launcher that I've seen before include "weapon" , "bazooka" .)