Hi, Rusty!
It isn't actually anything to do with showing respect for age........
It is an old well - established custom at Wimbledon to wait for one's opponent and walk off court together.
This has always been the case.
Sadly, it doesn't happen as much these days.....but the great sportsmen still do it.
Watch players like Novak and Rafa......
Now.....sorry to be dim...... I understand that 12 hours is half a day, but why is the day "Friday"?
This clue would have been more appropriate for tomorrow?
One more I need help with, please?
I overlooked this.....
24d: Join in dishonest practice (5)
I have graft = join
Where does the "dishonest practice" come in?