Please help with this crossword.?

Question

1. Regret strongly - _ _ _E_ _.
2. To stand on the side of the road and ask for a ride from any passing vehicles - H_ _ _ _ _I_E.
3. Exhibit politeness and good manners - C_ _ _ _ _ _ _ _.
4. Deficient in alertness - L_ _H_R_ _ _.
5. Trial period - P_ _B_T_O_.
6. Add details - E_ _ _O_ _ _ _.
7. Violent winds - _ _M_ _ _ _.
8. A heavy, closely woven fabric used to make tents - _ _NV__.

Additional Details

Now after adding the answers now I have one confusion.
It is that the 3rd word in 'Add details' is A and the word is probably 'Elaborate' but the 2nd word of 'Regret strongly' is E and that is the intersection point so either of them is wrong.

Violent wind is TEMPEST.

Answer 1

Best Answer - Chosen by Asker

1.repent
2. hitchhike
3. courteous
4. lethargic
5. probation
6.elaborate
7.
8. canvas

Asker's Rating:

Asker's Comment:

thanks a lot.

Answer 2

1. Lament
2. Hitchhike
3. Courteous
4.
5. Probabtion
6. Elaborate
7. Sumatra (maybe)
8. Canvas

EDIT: 1. Is LAMENT and that fits with ELABORATE

Answer 3

1.
2. HITCHHIKE
3
4
5 PROBATION
6 ELABORATE
7 MONSOON
8 CANVAS

Answer 4

(7 is TEMPEST ... any of the previous answerers ... feel free to copy it in, then I'll delete this.)