Sit in place as ordered, modelling material (10)
I believe the answer is:
plasticine
'ordered modelling material' is the definition.
The definition and answer can be both substances as well as being singular nouns.
Maybe they are linked in a way I don't understand?
'sit in place' is the wordplay.
'sit in place' can be anagrammed to 'PLASTICINE'.
However, I'm unsure how this is indicated.
'as' is the link.
Can you help me to learn more?
(Other definitions for plasticine that I've seen before include "Modelling clay" , "substance used by modellers" .)