That’s a remarkable effort, lemon, as these are some of the toughest clues you will see. Do you have Bradford’s Crossword Solver’s Dictionary? It will speed up your solving significantly.
5a parses 1, 5 (including an extra letter),1
9a parses 4 (inc extra letter), 3, 2. Has two hyphens in answer
7d four letter word for outside, containing two different abbreviations for barrel plus the usual concerning (inc extra letter)
8d old word meaning composed a song. Two letter abbreviation for theologian containing word for place (inc extra letter)