Understand leg-pull about article may make one feel anxious (3,3,4,2)
I believe the answer is:
get the wind up
'one feel anxious' is the definition.
(to get the wind up is to feel nervous or anxious)
'understand leg-pull about article' is the wordplay.
'understand' becomes 'get' (getting is a kind of understanding).
'leg-pull' becomes 'wind up' (both can mean a trick or prank).
'about' says to put letters next to each other.
'article' becomes 'the' (the definite article in English).
'windup' after 'the' is 'thewindup'.
'get'+'thewindup'='GET THE WIND UP'
'may make' is the link.
(Other definitions for get the wind up that I've seen before include "Become nervous" , "feel anxious" , "Become frightened" .)