A conker for the nature table

[Wastrel]

I picked you from the curb, - using you instead of it is powerful
prickled and sour sapped,
your fall, split white
on chestnut brown.- Perfect image of a squashed conker!

The ground drowns
in a crinkled collapse - not sure if you need "a"?
as feet shuffle sound
through wind cornered clusters - maybe put a hyphen between wind and cornered

Rain needles,
sharp as sketch book pencils. - love this image.
empty out,
run for cover high streets. - bit confused by punctuation here!

Blotted damp under a railway arch.
I pull my hood up and hide away,
bone deep,
on this top button day. - brilliant

I recently went for a walk with a friend and we each picked up a conker from the ground. It made me think of conker-fights in the playground and yes, conkers for the nature table. Then I see your lovely poem, so thanks for this.