German male forced to shine (5)
I believe the answer is:
gleam
'to shine' is the definition.
(synonyms)
'german male forced' is the wordplay.
'german' becomes 'g' (abbreviation).
'forced' indicates anagramming the letters.
'male' is an anagram of 'leam'.
'g'+'leam'='GLEAM'
(Other definitions for gleam that I've seen before include "Faint light; (quality) shine (in eyes)" , "Glisten" , "Flash of light" , "Shine brightly" , "shaft" .)