Crossword Genius

Famous entertainer deserts, upset (4)

Ross

I believe the answer is:

star

'famous entertainer' is the definition.
(I've seen this before)

'deserts upset' is the wordplay.
'deserts' becomes 'rats' (ratting is a kind of deserting).
'upset' is a reversal indicator.
'rats' backwards is 'STAR'.

(Other definitions for star that I've seen before include "Arts (anag)" , "Red Dwarf?" , "Celestial body of hot gases" , "Outstanding entertainer" , "Celebrated performer" .)

I've seen this clue in The Times.
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