Information masters are inclined to shine (7)
I believe the answer is:
glisten
'to shine' is the definition.
(synonyms)
'information masters are inclined' is the wordplay.
'information' becomes 'gen' (gen can informally mean information).
'masters' indicates putting letters inside (inserted letters are controlled or mastered).
'are inclined' becomes 'list' ('list' can mean to lean or tilt).
'gen' enclosing 'list' is 'GLISTEN'.
(Other definitions for glisten that I've seen before include "Shine or sparkle wetly" , "Be a shining example" , "look bright" , "Gleam by reflecting light" , "Shine like something wet" .)