Something to do with an incubator (5)
I believe the answer is:
hatch
'incubator' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?
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 "Come up with" , "Opening with removable door" , "Incubate - plan" , "Emerge from shell" , "Think up" .)