I thought a night's sleep and early start would help but have only entered about three answers in last hour, so am back begging for some leads!
16a, assume is a jumble, definition 'checking' but can't complete it.
27a, Another jumble? But can't see definiton or structure despite having several letters.
43a, have three out of five but still baffled.
38d, same, can't see first two letters or what type of clue.
32a, have first three letters and guess a jumble again?
48a, does entry simply start NG?