Daniel, it changed with regard to every feature (2,6)
I believe the answer is:
in detail
'regard to every feature' is the definition.
I can't tell whether this defines the answer.
'daniel it changed' is the wordplay.
'changed' indicates an anagram.
'daniel'+'it'='danielit'
'danielit' with letters rearranged gives 'IN DETAIL'.
'with' acts as a link.
Can you help me to learn more?
(Other definitions for in detail that I've seen before include "Minutely" , "Fully, point by point" , "Item by item" , "Thoroughly - including all important particulars" , "Where devil is said to be" .)