5a fixed peg inside instrument 6 letters s - i -e -
9a Decade passed in links 8 letters t-e-t-e-
20a After army retreats Crusoe moves furthest from the estuary 2,6, letters -t - - - r - e
22a Sleep disturbed around end of night, this tool pounding 6 letters - e - - - e -
13d. Ido the manoeuvring round university,s shelter. 7 letters h - d ----