Daughter has one particular account of things that is amusing (9)
I believe the answer is:
diversion
'that is amusing' is the definition.
(a diversion might amuse or entertain)
'daughter has one particular account of things' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'has' means one lot of letters go next to another.
'one' becomes 'i' (Roman numeral).
'particular account of things' becomes 'version' (version of events).
'd'+'i'+'version'='DIVERSION'
(Other definitions for diversion that I've seen before include "Alternative route" , "Detour" , "Amusement -- temporary redirection" , "entertainment" .)