Turn head of terminally lovesick sheep? (9)
I believe the answer is:
Here is my best explanation:
'sheep?' is the definition.
The definition and answer can be both animals as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'turn head of terminally lovesick' is the wordplay.
'turn' indicates anagramming the letters.
'head of' says to take the initial letters.
The initial letter of 'terminally' is 't'.
'tlovesick' is an anagram of 'LIVESTOCK'.