Clue: After father retires, Abramovich welcomes new or old worker (5-3)
Answer: APRON-MAN
Explanation: Definition: old worker
PA< + N in ROMAN. I hadn't heard of this Shakespearean word for a workman, but it's a plausible construction and the clue is obvious as long as you've heard of Roman Abramovich, Russian billionaire and owner of Chelsea football club