What could spark a bit of interest in thought processes for company? (8)
I believe the answer is:
ignition
'company?' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'what could spark a bit of interest in thought processes' is the wordplay.
I cannot quite see how this works, but
'of' could be 'o' and 'o' is found in the answer.
'in' is found in the answer.
This may be the basis of clue (or it may be nonsense).
'for' is the link.
(Other definitions for ignition that I've seen before include "Process of starting fire" , "Starting of combustion" , "Kindling process" , "Act of setting something on fire" , "Mechanism used to start an engine" .)