In the morning, doctor finds shell (4)
I believe the answer is:
ammo
'shell' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe there's a link between them I don't understand?
'in the morning doctor' is the wordplay.
'in the morning' becomes 'am' (AM on a clock).
'doctor' becomes 'mo' (medical officer).
'am'+'mo'='AMMO'
'finds' is the link.
Can you help me to learn more?
(Other definitions for ammo that I've seen before include "Bullets, shells, rockets etc" , "Bullets (abbrev.)" , "that goes in magazine: ...?" , "explosives, perhaps" , "Explosive devices" .)