Ty All In Advance

[Godeye]

18a)Like skin turned out? (6)-s---p
24a)Fly is not flying around dump (8)-----s-n
4d)In lift, hide American redhead (5)r-f--
19d)19 Are spades blocking door? (5)

[Lie-in King]

18a Asleep - 'as' (like) + 'peel' (skin, turned)
24a Jettison - 'jet' (fly) + anag 'is not'
4d Rufus - 'fur' (hide, in lift; up) + 'US'
19d Exist - 's(pades)' (blocking) 'exit'

[dannyk13]

4d.Rufus