"Take this bit of advice ..."

• Expert's nugget
• Piece of expert advice
• Hint from an expert
• "Let me tell you, this is how to do it"
• Little pointer
• Start of some modern, snarky advice
• Bit of expert advice
• Golf magazine staple

Wiktionary Word definitions in Wiktionary
n. (context internet slang often sarcastic English) A tip given by a professional.