Having no answer, somehow shell peas unaided (8)
I believe the answer is:
helpless
'unaided' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for helpless that I've seen before include "Powerless, defenceless" , "Unable to manage independently" , "Unaided" , "Uncontrollable (with laughter)" , "has no defence" .)