Absolute terror allowed (8)

I believe the answer is:
implicit
'absolute' is the definition.
(similar in meaning)
'terror allowed' is the wordplay.
'terror' becomes 'imp'.
'allowed' becomes 'licit' (I've seen this in another clue).
'imp'+'licit'='IMPLICIT'
(Other definitions for implicit that I've seen before include "Unspoken" , "Inherent but not made clear" , "Inferred" , "Taken for granted" , "Understood but not openly stated" .)