Juliet and I have an old-fashioned dance (4)
I believe the answer is:
jive
'an old-fashioned dance' is the definition.
'jive' can be an answer for 'dance' (thesaurus). I am not certain of the 'an old-fashioned' bit.
'juliet and i have' is the wordplay.
'juliet' becomes 'j' (phonetic alphabet: alpha, bravo, charlie etc.).
'and' means one lot of letters go next to another.
'i have' becomes 'ive'.
'j'+'ive'='JIVE'
Can you help me to learn more?
(Other definitions for jive that I've seen before include "Swing music; dance" , "Fast dancing style" , "Nineteen fifties dance style" , "Jerky dance of the 1940s and 1950s" , "Style of fast dance music" .)