Evaluates, it's said, most of plan for border (7)
I believe the answer is:
wayside
'evaluates it's said' is the definition.
I can't judge whether this definition defines the answer.
'most of plan for border' is the wordplay.
'most of' means to remove the last letter.
'plan' becomes 'idea' (I've seen this before).
'for' says to put letters next to each other (I've seen this in other clues).
'border' becomes 'ways' (I am not sure about this - if you are sure you should believe this answer much more).
'idea' with its last letter taken off is 'ide'.
'ide' after 'ways' is 'WAYSIDE'.
Can you help me to learn more?
(Other definitions for wayside that I've seen before include "Part of road" , "Edge of the road" , "near edge of path" .)