I'm rather surprised to be the first to scream for assistance with this one which is not the gentle stroll through the lower levels of the mind that a chap needs on a bank holiday.
I have filled in quite a lot of it, though with no great air of conviction, & might be able to make more progress if someone could supply the answers to these 2 :
3 D - Monitors shot youngster tailing guard (5, 4, 2)
&
29 D - Catch up, wanting desperately to cover cup game (6, 7)
I'm not adding any of the letters I think i have in these as so to do merely may mislead......
Thanks in advance