American can't get over Dracula is very familiar with The Book of Numbers (10)
I believe the answer is:
accountant
'very familiar with the book of numbers' is the definition.
I can't tell whether this definition defines the answer.
'american can't get over dracula' is the wordplay.
'american' becomes 'a' (common abbreviation - e.g. in organisation names).
'get' means one lot of letters goes inside another.
'over dracula' becomes 'count' (I am not sure about the 'over' bit.**).
'cant' placed around 'count' is 'ccountant'.
'a'+'ccountant'='ACCOUNTANT'
'is' is the link.
Can you help me to learn more?
(Other definitions for accountant that I've seen before include "fellow cutting costs?" , "financial controller" , "auditor" , "One keeping track of money" , "One dealing with finances" .)