Having pets, fur and vomit is spread round area (11)
I believe the answer is:
favouritism
'having pets' is the definition.
I can't judge whether this definition defines the answer.
'fur and vomit is spread round area' is the wordplay.
'and' says to put letters next to each other.
'spread' is an anagram indicator.
'round' indicates putting letters inside.
'area' becomes 'a' (maths abbreviation).
'fur'+'vomit'+'is'='furvomitis'
'furvomitis' with letters rearranged gives 'fvouritism'.
'fvouritism' enclosing 'a' is 'FAVOURITISM'.
Can you help me to learn more?
(Another definition for favouritism that I've seen is " Partiality".)