THC-crossword thread-6; 4 ans PP till 4 pm IST

[Russellrvw]

Note: Starred clues carry no direct definition, but they are all types of a geometric shape
Across
1 It might get written after a person's departure (8)
5 Rubble found by the young socialite and a gentleman from the east (6)
9 Greek character goes around Romania and America's south-east for the bridal wardrobe (9) TROUSSEAU
11 A sandwich without the topping for one who advocates (5)
12 Clumsy boats returning to pick up Bill Knight's medieval musical instrument (7) SACKBUT
14 Lamppost set up without son's hand-held computing device (7)
15 Selected trio in trouble with the polygraphs (3,9) LIE DETECTORS
17 Factors related to mental measurements (12) PSYCHOMETRIC
20 English poet in Switzerland for sulphur in a dish (7) CHAUCER
22 Oriental sign found outside the diary with a short poem (7) ECLOGUE
23 Medieval German pope and Italian philosopher condemned for heresy (5)
24 Protestant encountered folded dhotis inside (9) METHODIST
26 Rage revealed in letters from the Tennessee theatre ... (6) SEETHE (T)
27 ... next to the leading aspirin dispensary just around central Etowah's new terminal (8) ADJACENT

Down
1 *Pushy four move out after the monarch abdicates (6) OBTUSE
2 *Sees coils getting unwound (9) ISOSCELES
3 Raises part of the teacup set (3) UPS
4 German physicist with an Indian herbal soap turns up for an X-ray (13) ROENTGENOGRAM
6 *Counterpart embracing retail development (11) EQU(ILATER*)AL
7 *A religious ceremony for the auditor (5)
8 Left with no options, one might do this to a barrel's bottom (6)
10 Revolutionary to cure dependent at sea (13) UNPRECEDENTED
13 Speaker's split fabric to make a garment (11) BREECHCLOTH
16 Identify and appreciate (9) RECOGNISE
18 Diving apparatuses from South Carolina with Basu's uniform moved to the top (6) SCUBAS
19 Cross gets rid of the pawn in a set of seven and half a dozen (6)
21 *Copper carried by upset Greek character (5) {A(CU)TE<=}
25 Star, becoming bright, needs no introduction to the eggs (3)