Decent crossword from Paul today - a little less obscure than usual, except 4 clues I can't parse. Definitions are fine, but I can't see the wordplay - any pointers appreciated.
13A Thinkers arranging beer in line on the counter (7) I have "cerebra" (thinks) - got the "beer", but "cra"?
14A Slight lead after fall, everyone left behind (7) I have "affront" (slight) - got "a" then...?
16D Thinner track going uphill , what else can I say (5) I have "turps" (thinner) - no idea.
19D Dessert that would come back when booed, did you say? I have "meringue" (dessert) - I am looking for a really bad verbal pun here, but I can't see it!