"Tea For Two" as dance music (3-3)
I believe the answer is:
cha-cha
'dance music' is the definition.
(I know that cha cha is a type of dance music)
'tea for two as' is the wordplay.
'tea' becomes 'cha' (cha is a type of tea).
'for' says to put letters next to each other.
'two as' becomes 'cha' (I can't justify this - if you can you should give a lot more credence to this answer).
'cha'+'cha'='CHA-CHA'
Can you help me to learn more?
(Other definitions for cha-cha that I've seen before include "Latin-American dance" , "Latin American ballroom dance" , "Modern ballroom dance from Latin America" , "Repetitive Latin American dance" , "certain steps" .)