Solutions i wager this could be an unpleasant flatterer has 3 entries with similar clues

• 4-letter words
• selfPlutarch's "arch-flatterer"
• 8-letter words
• acanthusThistlelike shrub with spikes of flowers
• 12-letter words
• terrybutcherformer rangers defender who managed inverness caledonian thistle, 2009-13