Four, minus our two points, equals the bottom number (6)

I haven't cracked this one yet — but the brilliant team at Fifteensquared have:

F[our] + E[ast] + WEST 9 DAMNATION : DAM [mother – answer to 29] + NATION [land] 10 SHIVA : V [first letter of victorious] in SHIA [branch of Islam] 11 OUNCE : O[ld] +[d]UNCE: another name for the snow leopard 12 LOCAL CALL : LOL [laugh out loud] around CALCAL [CAL{ifornia} the state of Hollywood doubled up] 13 THIN AIR : T[ime] + HAIR [locks] round [securing] IN [home] – clever surface 15,27 BUNKER MENTALITY : some rather complicated wordplay here: BUNY [‘disheartened rabbit’] round [protecting] N [last letter of warren] with ET AL [and the others] outside, inside [trapped by] KERMIT [frog] 17,4 COOKIE MONSTER : anagram [new] of NOTICES MORE round [cages] OK [acceptable]: Kermit’s friend in Sesame Street 19 BOW LEGS : EG [say] in [blocking] BOWLS [game] 22 ASCERTAIN : anagram [pickles] of IN CAR SEAT 24 OTTER : a typical Paul invention: more OTT [over the top] 28 RESORTS : double definition [re-sorts] 29, 26 MOTHER-IN-LAW : a very clever anagram [funny] of WOMAN HITLER [2,8] and I suppose some might say &lit. I couldn’t possibly comment. [Isn’t Paul getting married some time around now?]