Almost but not quite there for me, got the grid filled, matched 5 of the 7 thematic answers to extra words then ground to a halt. Not sure about how to ask for help without spoiling puzzle for others . The two unmatched thematic answers I have left begin sic and law. I know the answers but can’t match either to an extra words, or work out how to use other letters to get to a theme beyond the obvious that it is an anagram. If anyone can give me a nudge I’d appreciate it.
Very enjoyable puzzle getting the grid filled just struggling with end game