One trailblazing star entertained by a fan of Queen (9)
I believe the answer is:
innovator
'one trailblazing' is the definition.
The answer is a person as well as being a singular noun. This is suggested by the definition.
'star entertained by a fan of queen' is the wordplay.
'star' becomes 'nova' (nova is a kind of star).
'entertained by' means one lot of letters goes inside another (inserted letters are hosted or entertained).
'a fan of' becomes 'into' (being into something means being a fan of it).
'queen' becomes 'r' (abbreviation for regina, e.g. in ER ).
'nova' placed inside 'into' is 'innovato'.
'innovato'+'r'='INNOVATOR'
Can you help me to learn more?
(Other definitions for innovator that I've seen before include "Person who devises a new way of doing things" , "Fresh thinker" , "Maker of change" , "new ideas man" , "Pioneer" .)