Shine, sparkle (7)
I believe the answer is:
glisten
I believe this is a double definition.
'shine' is the first definition.
(synonyms)
'sparkle' is the second definition.
(synonyms)
(Other definitions for glisten that I've seen before include "Gleam by reflecting light" , "Shine or sparkle wetly" , "Singlet (anag.); tingles (anag.)" , "'Shine, as if wet (7)'" , "Shine like something wet" .)