Copper stabs doctor in the manner of a horror novel (7)

I believe the answer is:
dracula
'a horror novel' is the definition.
'dracula' can be an answer for 'novel' (Bram Stoker novel). I am not certain of the 'a horror' bit.
'copper stabs doctor in the manner of' is the wordplay.
'copper' becomes 'Cu' (Cu is the chemical symbol for copper).
'stabs' means one lot of letters goes inside another (some letters stab themselves into others).
'doctor' becomes 'dr' (abbreviation).
'in the manner of' becomes 'a la' ('a la' means 'in the manner of', as in 'a la mode').
'dr'+'ala'='drala'
'cu' going into 'drala' is 'DRACULA'.
Can you help me to learn more?
(Other definitions for dracula that I've seen before include "gothic novel" , "Stoker's Count" , "Fictional count" , "Bram Stoker creation" , "Famous vampire" .)
