Reverses and provides evidence (5,2)
I believe the answer is:
backs up
'reverses and provides evidence' is the definition.
I can't judge whether this defines the answer.
'reverses and provides evidence' is the wordplay.
'reverses' becomes 'backs' (I've seen this before).
'and' says to put letters next to each other.
'provides evidence' becomes 'up' (I can't justify this - if you can you should believe this answer much more).
'backs'+'up'='BACKS UP'
Can you help me to learn more?
(Other definitions for backs up that I've seen before include "what annoying people get" , "Supports" , "Stands by" .)