Moving in edgily and giving way (8)
I believe the answer is:
yielding
'giving way' is the definition.
('yield' can be a synonym of 'give way')
'moving in edgily' is the wordplay.
'moving' is an anagram indicator (letters are moved around).
'in'+'edgily'='inedgily'
'inedgily' is an anagram of 'YIELDING'.
'and' acts as a link.
(Other definitions for yielding that I've seen before include "Backing down" , "Surrendering" , "that's not iron?" , "Succumbing" , "Giving way" .)