13a object of spiritual significance 5 t-n-- 3d having come the end of a period of engagement or imprisonment 4,7 t---e-p-r-d cant be 'time' cos the m would be last letter of 13a 27d footpath signs 8 -a-m-r-s 41d makes available 8 -u-p-i-s
All sounds good thanks but 13a totem fits in with time expired but not with 2d - clue- it's to do with the square on the hypotenuse...... I ve put pentagonal theorem??? The first 'n' is the place of the middle t in totem