In a city (not London) is nothing totally unimportant (8)
I believe the answer is:
derisory
'unimportant' is the definition.
Both the definition and answer are adjectives. Maybe they are linked in a way I don't understand?
'in a city not london is nothing totally' is the wordplay.
I cannot quite see how this works, but
'is' is within the answer.
'nothing' could be 'o' (looks like zero - 0) and 'o' is found within the answer.
The remaining letters 'derry' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for derisory that I've seen before include "Deserving of ridicule or scorn" , "Ridiculously inadequate" , "worthy of scorn?" , "Showing scorn or ridicule" , "pathetically small" .)