26A Mount or ascent to a height by climbing (5). I have _P_E_ - is it UP- something? 31A Rare term meaning a quantity of inferior grain, flour etc (4-3). I have T_I_A_D
Thank you v. much, mamyalynne; I'm afraid my Scots is not as good as it should be.. As for 'tail end', I'd better have another look at 23D, which is clearly not 'extract'. Back to the drawing-board.