Experience energy in ground movement (7)
I believe the answer is:
undergo
'experience' is the definition.
(I know that experience is a more specific form of the action undergo)
'energy in ground movement' is the wordplay.
'energy' becomes 'e' (physics symbol as in E=mc2).
'in' is an insertion indicator.
'movement' is an anagram indicator (letters move around).
'ground' with letters rearranged gives 'undrgo'.
'e' going within 'undrgo' is 'UNDERGO'.
(Other definitions for undergo that I've seen before include "Endure or be subjected to" , "put up with" , "Submit to an experience" , "Guerdon (anag.)" , "Suffer reverse" .)