43 Head was open to suspicion on board and brought to book...(7)
44....for cheating in bed with singer! (8)
I don't know the answer winnie. But 'On Board' in Crossword terms generally means 'SS' (steamship) Either 'ss' at the end of the word or S?????S (meaning inside SS)
So you may have the answer.
Ps. It looks like 43 and 44 are related with the Ellipsis (....)
If you have an answer for 44, It may make more sense.
PPs. I'm not doing this quiz myself. I had just found the questions online.
Good luck with your entry.