Pale sort of ring (4)
I believe the answer is:
peal
'ring' is the definition.
(pealing is a kind of ringing)
'pale sort' is the wordplay.
'sort' is an anagram indicator.
'pale' is an anagram of 'PEAL'.
'of' is the link.
(Other definitions for peal that I've seen before include "Deep prolonged sound" , "Loud burst of thunder - or laughter" , "Pale over sound of bells" , "Prolonged sound of a bell" , "Ring recurrently" .)