T; dance (5)
I believe the answer is:
tango
I believe this is a double definition.
't' is the first definition.
(I've seen this before)
'dance' is the second definition.
(I know that tango is a type of dance)
(Other definitions for tango that I've seen before include "Dance originally from Buenos Aires" , "musical piece" , "Letter T in radio comms" , "Last - in Paris (film)" , "Dance; letter T" .)