I'm apple shaped and wear:
Slim leg trousers or jeans (GAP slim crops, fatface skinnies, Topshop high waisted Kristens, Boden linen crops) Heard good things about Boden bistro crops too. Sometimes wear wide legs too - as long as the top part round bum and hips is fitted and worn with a fitted top half these are really flattering.
Cropped ish jackets (just below waist) GAP, sandwich, part two. Swing jackets are good, worn over a fitted dress or slim trousers and top. The jacket ends at hip length accentuating slim legs and hips.
Tops are harder. Need to be looser but not voluminous. Like Boden's ravello top. Also Jaegar in sale, Hobbs, Zara, Great Plains, Whistles seam back tees.
In winter boxy jumpers work well for me: Anthropologie, H and M. I avoid cardigans now as I think they make me look a bit frumpy. But I love the pencil skirt, fitted cardi and heels look.
For non work days I wear dresses (GAP, Mint velvet, White Company, Hobbs NW3, Jigsaw) and SHORTS. Feel like I'm always banging on about this on here but shorts are brilliant for apples. I've got great one from Fatface, Great Plains, M and S. Playsuits also great. Especially halter neck ones.
Going out: I used to go for 50s style dresses but realised this just accentuates my wide waist and swamps my slim hips. Now I go for a narrower, shorter dress tunic to show off my legs, or slim trousers or jeans with a fitted top and some sort of loose lacy jacket or bolero. The jacket edge distracts from the middle bit and ends at the hip.
Wear bags at hip length.
Fatface bottoms are cut for apples. Find Hobbs is too, and some Boden (read reviews to get a feel for this). Mint velvet also. Great Plains sometimes good. Me and Em expensive but appears to suit apples.
As you can tell I have spent far too much time thinking about this. I'm still working it all out though, but feel much happier with my shape and clothes as a result. Apples rock!