Manuscript father misspelt badly (10)
I believe the answer is:
palimpsest
'manuscript' is the definition.
(palimpsest is a kind of manuscript)
'father misspelt badly' is the wordplay.
'father' becomes 'pa' (pa can mean dad or father).
'badly' is an anagram indicator (letters in the wrong order).
'misspelt' anagrammed gives 'limpsest'.
'pa'+'limpsest'='PALIMPSEST'
(Other definitions for palimpsest that I've seen before include "Recycled manuscript" , "Reused parchment" , "recycled document" , "Simple taps (anag.); a manuscript" .)