9a - Guards following behind always 3,5 letters F - - / - E - - - 53a - Some of its members run into each other in libraries 6 letters - - D - - - 10d - Chap finding inscription on map of Xanadu? 5 letters - - L - H 12d - Language with power packs punch in college 7 letters - - N - A - L 40d - Publisher's last letter in support of two liberals can go astray 8 letters - O - L - N - - 49d - Boar's belly eaten according to Falstaff, maybe 5 letters O - E - -
The first letters of 10d and 12d are the third and seventh letters of 9a respectively The last letters od 40d and 49d are the first and fifth letters of 53a respectively
Thanks in advance - extra stars for explanations where not blindingly obvious!!!