Reference facsimile fooling Yard initially, ensnaring corrupt police (4,4)

'reference facsimile' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.

'fooling yard initially ensnaring corrupt police' is the wordplay.
'initially' says to take the initial letters.
'ensnaring' means one lot of letters goes inside another.
'corrupt' indicates anagramming the letters (a corrupted spelling of the word).
The initial letters of 'fooling yard' is 'fy'.
'police' is an anagram of 'ilecop'.
'fy' placed around 'ilecop' is 'FILE COPY'.

Can you help me to learn more?