Related Clues:

• There's one at the beginning of each of this puzzle's four theme entries
• Turns up, Russian flower produces grapes affecting Jersey
• Like some livestock
• Resembling cattle
• Like cattle
• Ox-like
• Foremost of beasts like sheep – or like cattle
• Like a cow with a nasty smell by a woody plant
• Going by book, sheep-like, dull and stolid
• Black sheep's description -- dull and stupid
• Jersey, perhaps, six in off-white
• (Like a) yak, for example
• Like oxen
• Like Elsie
• Where most peat is sourced is where grapes are grown? That's a load of bull!