Across
Nobleman in Paris that finally invests in planet (8)
I haven't cracked this one yet — but Times for the Times have:
QUE (in Paris ‘that’) + {invest}S [finally] contained by [in] MARS (planet)
Criminals in group ultimately pollute this river (6)
I haven't cracked this one yet — but Times for the Times have:
GANG (criminals in group), then {pollut}E + {thi}S [ultimately]
Refined female newspaper boss disturbed by photo (9)
Shoot native touring island group (5)
Scandinavian girl at back of horse — seated thus? (7)
I haven't cracked this one yet — but Times for the Times have:
ASTRID (Scandinavian girl), {hors}E [at back of…]. The definition refers back to ‘horse’ in the wordplay.
Abolish a ring originally of this shape? (7)
I haven't cracked this one yet — but Times for the Times have:
ANNUL (abolish), A, R{ing} [originally]. The definition refers back to ‘ring’ in the wordplay.
Bloomer harms chutney prepared by mother initially (13)
I haven't cracked this one yet — but Times for the Times have:
Anagram [prepared] of HARMS CHUTNEY, then M{other} [initially]
Unease of English doctor given tapestry by chaps in street (13)
I haven't cracked this one yet — but Times for the Times have:
E (English),MB (doctor), ARRAS (tapestry), then MEN (chaps) contained by [in] ST (street).
Bumpkin guarding Scottish port's source of animal feed (7)
Geordie mother dined with one in Muslim leader's office (7)
Fat porter, perhaps? (5)
In excursion round Rhode Island, pass flag (9)
I haven't cracked this one yet — but Times for the Times have:
TOUR (excursion) containing [round] RI (Rhode Island) + COL (mountain pass)
Tired as old folk were, always crossing river? (6)
In French, discuss Yankee's plea (8)
I haven't cracked this one yet — but Times for the Times have:
EN (‘in’ French), TREAT (discuss), Y (Yankee)
Down
Crazy commander's personal assistant disrupting plan (6)
Stand firm when second son leaves for exam (5)
I haven't cracked this one yet — but Times for the Times have:
RESI{s}T (stand firm) [when second son leaves]
It makes one extremely irresistible in fur, somehow (7)
I haven't cracked this one yet — but Times for the Times have:
I{rresistibl}E [extremely] contained by [in] anagram [somehow] of IN FUR
Trading situation: wine stores note it, we hear (7,6)
Sailors mostly knowledgeable about hot drink? (7)
I haven't cracked this one yet — but Times for the Times have:
ABS (sailors), INT{o} (knowledgeable about) [mostly], H (hot)
Seabird's culpability, eating a lot of fruit (9)
Set of symptoms unknown new doctor found in a few (8)
I haven't cracked this one yet — but Times for the Times have:
Y (unknown) + N (new) + DR (doctor) contained by [found in] SOME (a few)
Senior policeman, one doubting male medical specialist (13)
Strange hobby — clue "small compartment" (9)
Be sure that fellow is attorney for chapel (8)
I haven't cracked this one yet — but Times for the Times have:
BET (be sure), HE’S (that fellow is), DA (District Attorney). I think ‘bet’ is more to hope or have a very strong feeling rather than be sure. Bethesda is name used for nonconformist chapels.
Celebrate one included in duty list (7)
Captivate leader of orchestra in eastern part of Belgium (7)
I haven't cracked this one yet — but Times for the Times have:
O{rchestra} [leader] contained by [in] E (eastern) + NAMUR (part of Belgium)
Terrible barney in the immediate vicinity (6)
Bouquet from a European capital, as identified locally (5)
Type letters or click words in the clue