Record by Queen overturned hype (4)
I believe the answer is:
read
'record' is the definition.
(I know that record can be written as read)
'by queen overturned hype' is the wordplay.
'by' means one lot of letters go next to another.
'queen' becomes 'ER' (abbreviation for Elizabeth Regina).
'overturned' is a reversal indicator.
'hype' becomes 'ad' (advertisement).
'er' backwards is 're'.
're'+'ad' is 'READ'.
(Other definitions for read that I've seen before include "(Of passage) have a certain wording" , "register" , "examined" , "Study (for a degree?)" , "Interpreted, for example" .)