Clear he is taken in by company charter (8)
I believe the answer is:
coherent
'clear' is the definition.
(thesaurus)
'he is taken in by company charter' is the wordplay.
'is taken in by' indicates putting letters inside.
'company' becomes 'co' (abbreviation).
'charter' becomes 'rent' ('rent' can be a synonym of 'charter').
'co'+'rent'='corent'
'he' inserted into 'corent' is 'COHERENT'.
(Other definitions for coherent that I've seen before include "Logical and lucid" , "Able to speak clearly" , "Meaningful" , "Rational" , "Not rambling in speech or reason" .)