Help Plz. Thank You

[mightyquin]

cryptic
3D Long time before end of reign (5) ? E ? R ?
6D Where poor models accepts small engine strength (10) H ? R ? E ? U ?E ?
8D Writers article could have been torn ( 4, 6 ) ? ? ? R, ? ? ? N ? R
14D Treading dangerously on the slope (8) E ? ? ? ? I ? W ?
17 A Left the atmosphere in retreat (4) ? ? ? ?

[klazomaniac]

3d year n

[Captain2]

17a L-air

[pixie374]

3d yearn
17 lair

[Neveracrossword]

14 Gradient, slope - anagram of 'treading'.

[Captain2]

6 Horsepower

[klazomaniac]

6d horsepower

[pixie374]

14 gradient? Anag- is that the right pattern?

[Captain2]

8 Anne Bronte

[Captain2]

8 anagram of AN + BEEN TORN

(Writer's)