Strong feeling produced by a ring in no time, maybe (7)
I believe the answer is:
emotion
'strong feeling' is the definition.
(I've seen this in another clue)
'a ring in no time maybe' is the wordplay.
'a ring' becomes 'o' (O is the shape of a ring).
'in' indicates putting letters inside.
'maybe' indicates anagramming the letters.
'no'+'time'='notime'
'notime' with letters rearranged gives 'emotin'.
'o' placed inside 'emotin' is 'EMOTION'.
'produced by' is the link.
(Other definitions for emotion that I've seen before include "Strong feeling of joy, fear etc" , "Mental agitation" , "Feeling like love or hate" , "Fear possibly" , "Surprise, perhaps" .)