Glint (5)
'glint' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for glimmer that I've seen before include "Faint glow" , "Faint wavering light" , "Shine faintly and waveringly" , "Intimation (of hope?)" , "Faint sign" .)
'glint' is the definition.
(I know that glint can be written as gleam)
This is the entire clue.
(Other definitions for gleam that I've seen before include "Glint" , "Sparkle, glimmer" , "Brief shining" , "Beam of soft light, comes and goes" , "Glow of light" .)