Horizontal:

Mesa - Flat-topped hill Allowed - Permitted Punchup - Brawl Irresistible - Just too tempting Aeolian - Relating to wind action Nervily - Anxiously Chromeyellow - Bright pigment Penned - Corralled Nowthen - Interjection of rebuke Pinned - Nailed Blood - Oxygen-carrying liquid Punned - Played on words

Vertical:

Eddy - Whirl Pend - Remain undecided Pond - Small lake Heliocentric - Revolving around the sun Narwhal - Tusked whale Panned - Severely criticised (a play, etc) Newel - Top/bottom supporting post of a stair-rail Substructure - Underlying framework Passage - Way through; sea journey Doeeyed - With some deer-like facial features Bride - Woman at a wedding Ethyl - - alcohol; - acetate