Make a pig of oneself from beans regularly found next to valley (7)
I believe the answer is:
engorge
'make a pig of oneself' is the definition.
(to engorge is to eat like a pig)
'beans regularly found next to valley' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'found next to' says to put letters next to each other.
'valley' becomes 'gorge' (gorge is a kind of valley).
The alternating letters of 'beans' are 'en'.
'en'+'gorge'='ENGORGE'
'from' acts as a link.
(Other definitions for engorge that I've seen before include "Eat ravenously" , "Congest with blood - eat greedily" , "Cause to swell with fluid" , "Eat immodestly" , "Swell with blood, water, etc" .)