Religious liar is put off (9)
I believe the answer is:
spiritual
'religious' is the definition.
(I know that religious can be written as spiritual)
'liar is put off' is the wordplay.
'off' indicates an anagram.
'liar'+'is'+'put'='liarisput'
'liarisput' is an anagram of 'SPIRITUAL'.
(Other definitions for spiritual that I've seen before include "concerning religion" , "Relating to the sacred or the soul" , "Relating to religion" , "Sacred - Black American religious song" , "Of things of the soul" .)