The term 'HALF AN OLD COMEDY DUO' is referring to the famous comedy duo of Stan Laurel and Oliver Hardy, often referred to as 'Laurel and Hardy'. The crossword solution for this term is 'OLLIE', which is the nickname of Oliver Hardy. Laurel and Hardy were a popular comedy duo in the early 20th century, appearing in over 100 films together. They are known for their slapstick comedy and their signature catchphrase 'Well, here's another nice mess you've gotten me into!'