Gunston abandoned son, putting little bed in cellulose nitrate laced with nitrogen (9)
I believe the answer is:
guncotton
'nitrogen' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'gunston abandoned son putting little bed in cellulose nitrate laced' is the wordplay.
I cannot quite see how this works, but
'bed' could be 'cot' (cot is a kind of bed) and 'cot' is located in the answer.
This explanation may well be incorrect...
'with' acts as a link.
Can you help me to learn more?
(Another definition for guncotton that I've seen is " Type of explosive".)