Tense PM is out creating vacancy (9)
I believe the answer is:
emptiness
'vacancy' is the definition.
('emptiness' can be a synonym of 'vacancy')
'tense pm is out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'tense'+'pm'+'is'='tensepmis'
'tensepmis' is an anagram of 'EMPTINESS'.
'creating' acts as a link.
(Other definitions for emptiness that I've seen before include "Lack of content" , "Vacancy, void" , "vacuum" , "Void; hunger" , "Lack of substance" .)