German male disguised shine (5)
I believe the answer is:
gleam
'shine' is the definition.
(I know that gleam is a type of shine)
'german male disguised' is the wordplay.
'german' becomes 'g' (abbreviation).
'disguised' indicates an anagram.
'male' is an anagram of 'leam'.
'g'+'leam'='GLEAM'
(Other definitions for gleam that I've seen before include "Moderate glow" , "Beam of soft light, perhaps in eye" , "Faint light; (quality) shine (in eyes)" , "Shine brightly" , "shaft" .)