Parsnip Problem??

Just picked this parsnip, had a couple like this, only the other one looked more like a swede ! Really wide at top and stumpy. I planted them from seed at the allotment by making a hole about 5 inches deep with an old sawn off shovel handle, which I use for leeks. Then filled the hole with compost and planted seed in there, thinking I'd get a  less misshapen crop, as the ground is quite claggy, not as bad as clay, which it was before treatment, but not perfect run through your hands soil. Any advice for the future, do you think they should be ok to eat, I will try it and see, which I suppose is the best way! Just want to grow mormal size ones if I can.

It'll be fine to eat.
By way of a possible explanation, I have two main veg areas. One is deep well-draing loam. This produces long tapering parsnips. The other area is reclaimed from pasture, the soil is only about 20 cm deep, is very sticky and over the years I've attempted to improve it with copious amounts of horse droppings. It produces short, squat parsnips just like yours

The good news is that the type of claggy soil we are talking about produces quite massive chunky leeks that go to seed much later than the ones on good loamy soil