Come out of your shell, ducky! (5)
I believe the answer is:
hatch
'come out of your shell' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for hatch that I've seen before include "Breed" , "Emerge from shell" , "Incubate - plan" , "Think up" , "Devise" .)