Finally putting spotlight on boy vocalist (10)
I believe the answer is:
songstress
'vocalist' is the definition.
(I know that vocalist can be written as songstress)
'finally putting spotlight on boy' is the wordplay.
'finally' indicates one should take the final letters.
'spotlight' becomes 'stress' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'on' says to put letters next to each other.
'boy' becomes 'son' (synonyms).
The last letter of 'putting' is 'g'.
'g'+'stress'='gstress'
'gstress' put after 'son' is 'SONGSTRESS'.
Can you help me to learn more?
(Other definitions for songstress that I've seen before include "Female singer" , "performer" , "coloratura perhaps" , "Soprano perhaps" , "Woman making up the numbers" .)