19 Across, Keen 28 to have a new leader (5) E???? [28 = One summons 19 to get a new leader(5)
27 Across, Timeless emoticons concocted with line - and this (inter alia)? (9) S????????
17 Down, Reprimand last of band singers after performing badly (8) D?E?S???
18 Down, Still time to bat (ignoring pub)when bad light stops play? (8) E?E?I???