Two tango uniforms and a ballet dress (4)
I believe the answer is:
tutu
'a ballet dress' is the definition.
(I've seen this in another clue)
'two tango uniforms' is the wordplay.
'two' says to double the letters.
'tango uniforms' becomes 'tu' (this might be a standard abbreviation which I don't know about).
'tu' doubled is 'TUTU'.
'and' is the link.
Can you help me to learn more?
(Other definitions for tutu that I've seen before include "Ballet dress" , "Giselle's skirt" , "Ballet dancer's short skirt" , "Ballerina's costume" , "Female ballet costume" .)