Pedigree pet for each Welshwoman on boat (7,3)
I believe the answer is:
persian cat
'pedigree pet' is the definition.
(breed of cat)
'each welshwoman on boat' is the wordplay.
'each' becomes 'per'.
'welshwoman' becomes 'sian' (common Welsh name).
'on' is a charade indicator (letters next to each other).
'boat' becomes 'cat' (I've seen this before).
'per'+'sian'+'cat'='PERSIAN CAT'
'for' acts as a link.
(Other definitions for persian cat that I've seen before include "domestic pet" , "beast" , "Hairy pet" , "animal" .)