Crossword Genius

Enthusiastic female singer turned up (4)

Ross

I believe the answer is:

avid

'enthusiastic' is the definition.
(similar in meaning)

'female singer turned up' is the wordplay.
'female singer' becomes 'diva' (term for a famous opera singer).
'turned up' says the letters should be written backwards.
'diva' backwards is 'AVID'.

(Other definitions for avid that I've seen before include "Very keen, desirous" , "Greatly desirous" , "Keen, enthusiastic" , "Showing a very keen interest in something" , "hungry" .)

I've seen this clue in The Sun.
Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.