Clue: Lord Copper edging closer to junior doctors (6)
Answer: CRUMBS
Explanation: Definition: Lord
Last letter or "closer" of junioR in CU + MBS (doctors), with Lord! as an interjection as the definition. Not that it's relevant, but Lord Copper is the newspaper proprietor in Evelyn Waugh's *Scoop*, whose flunkeys never dare say no to him, just "up to a point, Lord Copper"