6d hype excessively (10) overe-p-s- 16d bringing back to mind (9) e-o-a---e 20d alternate between two options on a computer (6) -o---e 25a whingeing (7) g-i-in- 26a convert to cash by selling (7)...
17a (3,4) belonging to former era old/---e 21a (9) seditious ---u-g--- 11d (9) rupturing (9) -a-i-t--- 12d (9) general rule -u-d-l--- 14d (5) come about -c-u- 15d (5) hoist ---c-
13a easy to adjust (9) ---p-a-l- 21a pleasure from pain and suffering (9) ---o-h-g- 27a completely reverse a situation (4,3,6) turn? ---t---e- 7d exhibition, explanation of how something works (13)...
6d household of two parents and their children (7,6) -u---a-/family 11d in some measure (9) 10a off the mark -i-- (4) 13a ill-conceived (4,5) ---i/-a-e- 21a stuffiness (9) ---s-ness