Example: span...naps.
Redrum - Murder.
Desserts - Stressed
Live - Evil
Knits - Stink
Sports - Strops
Regal - Lager
Pupils - Slipup
Smart - Trams
Pals - Slap
Snug - Guns
Lived - Devil
Straw - Warts
Time - Emit
Deliver - Reviled
Star - Rats
Spoons - Snoops