Having said that sometimes when I have got my order I have realised why the item was on clearance. But if you don't mind returning stuff at your own expense it can be well worth the risk as I have had some brilliant bargains from there.
I ordered a saddle last Sunday and it arrived on Thursday - very good condition and well packed. Sadly it doesn't fit (my fault) so I will be testing their returns system next week!
Derby House and Frogpool have always been good.
Robinsons are variable.
This lot (www.stockleyonline.co.uk) delivered directly to my yard for free as they based close by. Excellent personal service.
I will have a look at Equestrian Clearance Warehouse as I am after a long-sleeved show shirt for SJ'ing. Where I compete insists on covered arms and I won't wear a jacket in the summer as I have zero tolerance for heat.