Solutions to asterisked clues all appear in a 16 across (but only 11 and 28 are in the same one and only 27 in a US one).
Across
1 * Briefly recognise the woman outside as one trying to get illegal access (6)
5 * God whose wife ousted by time-warped genuine article (3,5)
9 Moving both ways as well as taking father in besides (2,3,3)
10 * Can be precipitous (6)
11 * Lance Hill (4)
12 Become member of conservationist organisation — Clare's always around (5)
13 Sound of triumph escapes from Beanstalk City (3)
14 * Flighty type of fellow, casanova (8)
16 (unclued) (6)
17 * One inclined to be a record maker? (6)
19 Spies night-flier and volunteer force making bread (8)
21 This has no left signal (3)
22 Scrap old railway tool (5)
23 A sum that's beneath the polo player (4)
25 Leave without Ravel's brilliant spotter of clues (6)
26 * Sword-supporter having no locks to wrench (8)
27 * Provisional retailer and programming language manipulator (8)
28 * Not one to wait for the raised finger of jazz pianist long replaced by Kay (6)

Down
2 Brief attempt to impregnate Daisy, perhaps, followed by Latin-centred love interest and dressing (5)
3 Most accommodating clothes into which Ned's wriggled (7)
4 Fortifying drink of concern to the inexperienced learner (9)
5 * Foot's a particular type of angler (7)
6 End of three months and it still has traces of heat (5)
7 Possibly serving as re-mapped contour (2,5)
8 Imagine tender gorgeous hunk (9)
15 The well-built swinger's minimal dress? (9)
16 Creeping around Wallis' son (5-4)
18 Scary film featuring roofless abode stuck in time layer (3,4)
19 One honoured to be in daily parliamentary division (7)
20 Habit of rustling paper when squeezed by gangster (7)
22 * Catholic church lacks gallery plant (5)
24 Market opening end of March in seaside resort (5)

© Eddie James 2002       Solution