Pattern of cloth vet put on canine perhaps after canine (3-5,5)

'pattern of cloth' is the definition.
(dog-tooth check is a textile pattern)

'vet put on canine perhaps after canine' is the wordplay.
'vet' becomes 'check' (vet can mean to test or check).
'put on' says to put letters next to each other.
'canine perhaps' becomes 'tooth' (canine is a type of tooth).
'after' means one lot of letters go next to another.
'canine' becomes 'dog' (dog is a kind of canine).
'tooth' after 'dog' is 'dogtooth'.
'check' after 'dogtooth' is 'DOG-TOOTH CHECK'.