Very grateful for all help with these clues please.
15ac: “Agreed to a German weapon after it’s cut a gemstone (6).”
16dn: “Old coin shop is to let, but not all of it (7).”
18dn: “Good-looking Girl is entertaining weirdos (7).”
15a Jasper - 'ja' ("agreed" to a German) + 'spe(a)r' (cut 'a') 16d "...sho P IS TO LE t..." 18d Misfits - 'miss' (entertaining; containing) 'fit' (good-looking)
15a Jasper - 'ja' ("agreed" to a German) + 'spe(a)r' (cut 'a')
16d "...sho P IS TO LE t..."
18d Misfits - 'miss' (entertaining; containing) 'fit' (good-looking)