Dog daughter found in Dorset town (6)
I believe the answer is:
poodle
'dog' is the definition.
(breed of dog)
'daughter found in dorset town' is the wordplay.
'daughter' becomes 'd' (genealogical abbreviation).
'found in' means one lot of letters goes inside another.
'dorset town' becomes 'poole' (I've seen this before).
'd' inserted into 'poole' is 'POODLE'.
(Other definitions for poodle that I've seen before include "Lapdog" , "Servile person; dog" , "5 [MANS BEST FRIEND]" , "Pet dog with clipped curly coat" , "Dog (seen in a parlour?)" .)