Son, eight, tap dancing? Logos been changed for popular dish? (9,9)
I believe the answer is:
spaghetti bolognese
'son eight tap dancing? logos been changed for popular dish?' is the definition.
I can't judge whether this defines the answer.
'eight tap dancing? logos been changed for popular dish?' is the wordplay.
'dancing?' indicates anagramming the letters.
'changed' is an anagram indicator.
'for' means one lot of letters go next to another (I've seen this in other clues).
'popular dish?' becomes 's' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'eight'+'tap'='eighttap'
'eighttap' with letters rearranged gives 'paghetti'.
'logos'+'been'='logosbeen'
'logosbeen' is an anagram of 'bolognese'.
'paghetti'+'bolognese'='paghettibolognese'
'paghettibolognese' put after 's' is 'SPAGHETTI BOLOGNESE'.
Can you help me to learn more?
(Another definition for spaghetti bolognese that I've seen is " Pasta dish".)