Cheese pieces with temperature maintained in space by onboard computer (9)
I believe the answer is:
emmenthal
'cheese' is the definition.
(Emmenthal is an example)
'pieces with temperature maintained in space by onboard computer' is the wordplay.
I cannot really see how this works, but
'pieces' could be 'men' (man can mean a chess piece) and 'men' is found within the answer.
'temperature' could be 't' (abbreviation) and 't' is found within the answer.
'space' could be 'em' (in typography, a space as wide as a letter 'm') and 'em' is located in the answer.
The remaining letters 'hal' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for emmenthal that I've seen before include "Type of cheese" , "Something cheesy" , "Swiss cheese with holes" , "Swiss valley giving its name to a cheese" , "Hard Swiss cheese" .)