Miss is fanatical, grabbing ring (5)
I believe the answer is:
avoid
'miss' is the definition.
(miss can mean to avoid)
'fanatical grabbing ring' is the wordplay.
'fanatical' becomes 'avid' (I've seen this before).
'grabbing' means one lot of letters goes inside another.
'ring' becomes 'o' (letter resembling a ring).
'avid' enclosing 'o' is 'AVOID'.
'is' is the link.
(Other definitions for avoid that I've seen before include "Fend off" , "Evade - escape" , "Get out of" , "Bypass" , "invalidate" .)