Rows with wild beasts? Good to escape! (5)
Not 100% on the U or the K -
The U comes from AMARACUS - A mum getting a thorn unfortunately when discarding old plant - the A MA is easy enough, but amaracus seems to be the only plant that fits.
The K is from: Fielder drinking masses of water when the sporting business has been half done - MID-WICKET, which again I'm not totally sure of. The mid seems fine, but I can't find any other field positions that would fit - ?I???T
Thanks for any suggestions