I've still been ploughing on with this one & need 1 4 letter answer to finish it. 49A ?E?H 'Man associated with comets, missing Central Line once or twice, returns quite casually.' Hope someone will please put me out of my misery. Is it Lech?
Brilliant! Thank you both so much. My other half copped for it today when, on his advice, I put assAgai instead of assegai in No 656! Did think it was a tricky decision to have to make though. Thanks again.