Clean / Explicit from Filename

Again, many thanks for your time.

So I have

%track% -%title% - %artist% - %album% - %key% - %BPM%

Working, as per the manual.

Some filenames are

01 - (We're Gonna) Rock Around The Clock - Bill Haley - Universal Masters Collection - 11B - 91

So as per the manual

%track% -%title% - %artist% - %album% - %key% - %BPM%

Works

Some are

54 - Eamon - Fuck It (I Don't Want You Back)(Explicit) - I Don't Want You Back - 11B - 91

So in the second case, I don't know what to put here.

%track% - %artist% -%title% - [ HOW DO I DO EXPLICIT HERE] %album% - %key% - %BPM%

Also for the first one, how do I put a [C] in the file name?