Definitely not one far removed (2,4)
I believe the answer is:
no fear
'definitely not' is the definition.
(I've seen this before)
'one far removed' is the wordplay.
'removed' indicates an anagram (moved again).
'one'+'far'='onefar'
'onefar' anagrammed gives 'NO FEAR'.
(Other definitions for no fear that I've seen before include "Definitely not (sl.)" , "Never" , "what the bold show" , "Absolutely not" , "Certainly not (informal)" .)