Hi granama. This was indeed a major tussle. I’ve just completed the grid fill... talk about tough clueing! It took me a good 10 minutes to identify which answer went through the cell under 4.... it’s (36-21)
For 42-26 I was initially trying to anagram two words with various bits removed. Only one is anagrammed (with a bit removed) plus a synonym for the other inside. The answer is thematic which might help you with the prince.
For 62-57, have you looked up the various words of the clue in Mrs Bradford’s? The definition of one of the synonyms is further expanded in Chambers to include the word you want (ie it’s not listed separately). I looked at this about 10 times without seeing it!
Let me know if you need stronger hints.