90s music piece including Queen and old man (7)
I believe the answer is:
britpop
'90s music' is the definition.
'britpop' can be an answer for 'music' (I've seen this before). I am not certain of the '90s' bit.
'piece including queen and old man' is the wordplay.
'piece' becomes 'bit' (bit is a kind of piece).
'including' means one lot of letters goes inside another.
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'and' means one lot of letters go next to another.
'old man' becomes 'pop' (both can mean someone's father).
'bit' going around 'r' is 'brit'.
'brit'+'pop'='BRITPOP'
Can you help me to learn more?
(Other definitions for britpop that I've seen before include "1990s popular music style" , "Twentieth century music" , "Mid-1990s' music of Oasis and Blur" , "1990s musical movement" , "Guitar music of the '90s" .)