Opera songs but not, eg, baroque singers (8)
I believe the answer is:
sopranos
'singers' is the definition.
(I've seen this before)
'opera songs but not eg baroque' is the wordplay.
'but not' indicates named letters should be taken away.
'baroque' indicates anagramming the letters (baroque can mean fancy or complex).
'opera'+'songs'='operasongs'
'operasongs' with 'eg' taken away is 'oprasons'.
'oprasons' with letters rearranged gives 'SOPRANOS'.
(Other definitions for sopranos that I've seen before include "Female singers (opera)" , "Females with highest singing voices" , "Highest female voices" , "Female singing voices or TV mafia family" .)