Semi-rigid form of state control? (9)
I believe the answer is:
'state control?' is the definition.
(I've seen this before)
'semi-rigid form' is the wordplay.
'form' indicates anagramming the letters.
'semirigid' is an anagram of 'DIRIGISME'.
'of' is the link.
(Another definition for dirigisme that I've seen is " State control of economy".)