The Fourth Doctor Era - Part One

Hello Cruciverbalists of Time and Space! 

This week's crossword is all about the first half of Tom Baker's mammoth tenure of Doctor Who, so get thinking about Sarah Jane and Leela adventures. We will return to this era another time as there is so much to cover! Your erstwhile compiler has been battling COVID this week, but I now feel mostly back on form now the nucleus of the swarm has been banished! 

Happy times and places, Code Nine x