Help! - finished the rest of this in good time(slight blip working out the wordplay for 18D) but have foundered on 15A - Light rain?If so,it makes mum tut(4) ?I?T
My first thought was mist(light rain) but can't see the wordplay
2nd thought was hist(tut/hush) from sh(mum)and it but in that case "light rain" seems superfluous - put me out of my misery please!
Thanks
ixion