Hot melody in controversial musical (4)
I believe the answer is:
hair
'controversial musical' is the definition.
'hair' can be an answer for 'musical' (1960s musical). I am unsure of the 'controversial' bit.
'hot melody' is the wordplay.
'hot' becomes 'h' (abbreviation eg on taps).
'melody' becomes 'air' (synonyms).
'h'+'air'='HAIR'
'in' is the link.
Can you help me to learn more?
(Other definitions for hair that I've seen before include "Barber's speciality; musical" , "Filaments growing on the epidermis" , "Fuzz" , "Whiskers" , "It grows from a follicle" .)