Egyptian “King” has uniform dress for ballet dancers (4)
I believe the answer is:
tutu
'dress for ballet dancers' is the definition.
I can't judge whether this definition defines the answer.
'egyptian king has uniform' is the wordplay.
'egyptian king' becomes 'Tut' (nickname of Tutankhamun).
'has' is a charade indicator (letters next to each other).
'uniform' becomes 'U' (phonetic alphabet: alpha, bravo, charlie etc.).
'tut'+'u'='TUTU'
Can you help me to learn more?
(Other definitions for tutu that I've seen before include "outfit" , "In which dancer may appear" , "Ballerina's stiff skirt" , "Ballet-dancer's skirt" , "Short skirt for ballet dancer" .)