1) Approves 2) Dies 3) Oks 4) Postage 5) Stepson 1) Commemoratives 2) Envelope attachments 3) Familiar commemoratives 4) FDR collection 5) Hobby of George V and FDR 6) Imprints with a seal 7) Items bought in rolls 8) Jazz album by American artist 9) Letter attachments 10) Letter squares 11) Mail attachments 12) Office assortment 13) Philatelists collect them 
Stamps is slang for legs.