18 across
Awfully
adorable
old
pet
(11)
Awfully adorable old pet (11)
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The definition is at the end of the clue.
How the clue works
Right, so "awfully" is your anagram flag, telling you to shuffle up the letters of "adorable old" — eleven letters, count them — and that jumbles into the answer. Then pet at the end is the definition, since a Labradoodle is exactly that, a pet dog.