Bright silver getting male excited (6)
I believe the answer is:
agleam
'bright' is the definition.
(similar in meaning)
'silver getting male excited' is the wordplay.
'silver' becomes 'Ag' (Ag is the chemical symbol for silver).
'getting' says to put letters next to each other.
'excited' is an anagram indicator.
'male' is an anagram of 'leam'.
'ag'+'leam'='AGLEAM'
(Other definitions for agleam that I've seen before include "Shining brightly" , "Sparkling" , "Bright" , "scintillating" .)