Boring people make this missile after bomb (9)
I believe the answer is:
mineshaft
'boring people make this missile after bomb' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'missile after bomb' is the wordplay.
'missile' becomes 'shaft' (I am not sure about this - if you are sure you should believe this answer much more).
'after' says to put letters next to each other.
'bomb' becomes 'mine' (I've seen this before).
'shaft' after 'mine' is 'MINESHAFT'.
Can you help me to learn more?
(Other definitions for mineshaft that I've seen before include "one's got bored" , "Vertical hole" , "not a feature of 4, 21 [OPENCAST MINING]" .)