Daughter is on track for conversation (9)
I believe the answer is:
discourse
'for conversation' is the definition.
(I've seen this before)
'daughter is on track' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'on' means one lot of letters go next to another.
'track' becomes 'course' (synonyms).
'd'+'is'+'course'='DISCOURSE'
(Other definitions for discourse that I've seen before include "Written or spoken communication" , "Engage in conversation; debate" , "Communication verbally" , "Speech - conversation" , "(Formal) talk" .)