Good morning all
My usual good wishes to old gal, Navigator and Pipesmoker.
I agree with Lainey on the wordplay for 3D. As for the "little creature" I have removed quite a few from my dog, being particulary careful not to leave the head behind! But I didn't think the clue was well crafted.
I enjoyed 18A, 20A, 23A, & 14D
As for 5D I based my answer on motorcycling, but there could be an alternative.
Kind regards
Jazzgirl