barebones 28 sep

[BLHC]

3d Military hat has OK loosley given (s?a?o)
6d Fellow longs, we hear, for no-genuine items (f?k??) is it fakes, if so why - could it be F(fellow) akes (sounds like aches)?
13d Ancient kingdom of gros(s aba)ndonment (s?b?) - is it SABA
12a Large cleasing device was squire in centre (w?S?t?b) is it washtub?
15a Casual, not working to get help (o?f?a?d) is it offhand - if so why?
19a Born supple and happy (?L?T?E)

[1955]

3d Shako
6d Fakes
19a Blithe

[Lie-in King]

3d Shako - anag 'has ok'
6d Yes, for the reason you give
13d Yes "
12a Yes - Was + t(square) (in) hub
15a Yes - Off (not working) + hand (help)
19a B-lithe

[Lie-in King]

Apologies - Saba is another name for Sheba

[1955]

12a Washtub - something to do with hub (centre)
15a Offhand (casual) off (not working) hand (a help)
Agree with all your answers

[BLHC]

Thanks everyone - each week I am understanding the clues a little more