Hi Chris,
In my list of clues where I had queries I only mentioned the 2 in the 1,2,4 in 5a, but originally there were three.
The other two were 19a where wasn't keen on the first 2 letters meaning "get on" and the 3 letter "sovereign" in 15d.
In the end i decided I could just about live with 19a and 15d so dropped them from my list, so you weren't alone in finding some synonyms a bit on the loose side Chris.