1 & 30 & 11 across.Traditionally the summer months(4,5,4,6)
1 across has 9 letters in the grid.
1 across JULY- - - N -.
30 across WITH.
11 across AUGUST.
4 down Fly and not quietly(6) - - U - LY
The first letter of 4 down is the sixth latter of 1 across.
Any help appreciated. Thanks.