Being flexible with worker lacking aspiration, cut workforce down - that'll regulate prices (6,3,6)
I believe the answer is:
supply and demand
'that'll regulate prices' is the definition.
The definition suggests a singular noun which matches the answer.
'being flexible with worker lacking aspiration cut workforce down' is the wordplay.
I cannot really see how this works, but
'being' could be 'man' (human being) and 'man' is present in the answer.
'with' could be 'and' and 'and' is located in the answer.
'down' could be 'd' and 'd' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for supply and demand that I've seen before include "Economic laws" , "Balancing principle" , "flexibility and order" .)