Exuberant farm animal that is caught in a tangled net (9)
I believe the answer is:
ebullient
'exuberant' is the definition.
(synonyms)
'farm animal that is caught in a tangled net' is the wordplay.
'farm animal' becomes 'bull' (bull is an example).
'that is' becomes 'ie' (abbreviation for id est, 'that is' in Latin).
'caught in' means one lot of letters goes inside another.
'a tangled' indicates anagramming the letters.
'bull'+'ie'='bullie'
'net' is an anagram of 'ent'.
'bullie' put within 'ent' is 'EBULLIENT'.
(Other definitions for ebullient that I've seen before include "Cheerful, full of energy" , "bright and breezy?" , "Bubbling with enthusiasm" , "Jolly" , "Libel tune (anag.)" .)