### Clue: Royal venue in which watch chain is presented to husband with everything (6,4)
### Answer: ALBERT HALL 
 ### Explanation: Definition: Royal venue
 ALBERT(a watch chain to be attached it to a buttonhole) **plus**(is presented to) H(abbrev. for "husband") **plus**(with) ALL(everything).
Answer: In full, the Royal Albert Hall in South Kensington, London, a venue for performances, in particular the Proms.