turnip parsnips
plaza
Some animals starting with P, ending in A:PacaPandaPikaPiranhaPittaPuma
Mump.
calthrop
Carhop
* poetic * poniac
zapp
Keep and kelp are four letter words starting with K and ending with P.
Teashop treetop trollop .
papaw, pilaw, pshaw
Parka, panda, pizza, plaza...
jalap, jalop, julep