Across
Fantastic Spurs team does ultimately qualify (10)
I haven't cracked this one yet — but Fifteensquared have:
(Spurs team [doe]s)*
Active sort of ruminant alongside river (4)
I haven't cracked this one yet — but Fifteensquared have:
Doe(=female deer, a ruminant species) + r{iver}
Snarl “Go away!” (10)
Ah gotcha...it’s extremely extremely expensive! (4)
I haven't cracked this one yet — but Fifteensquared have:
I[t]s + e[xpensiv]e
To some extent full-time gaming is very good (4)
Writer in the end decided to fill a sheet for attachment (9)
I haven't cracked this one yet — but Fifteensquared have:
(Pen(=writer) + [decide]d) in a page(=a sheet)
King handily dismissing son in a deplorable way (8)
I haven't cracked this one yet — but Fifteensquared have:
R(=rex,king) + u[s]efully. I struggle a bit with ruefully as meaning "in a deplorable way", although some online thesauruses do give it as a weak synonym.
News of Hollywood trial? (6)
I haven't cracked this one yet — but Fifteensquared have:
LA(=Los Angeles, of which Hollywood is a part, necessitating the question mark) + test
Hurtful remark expressed initially about international blockbuster comedy (6)
I haven't cracked this one yet — but Fifteensquared have:
(Barb(=hurtful remark) + e[xpressed]) around i{nternational}
Hold back a show of disapproval for childish game (8)
I haven't cracked this one yet — but Fifteensquared have:
Keep<(=hold back) + a boo(=cry of disapproval)
One brief moment to take in a certain type of exercise (9)
I haven't cracked this one yet — but Fifteensquared have:
(I(=one) tric[e](=brief moment) around some(=a certain)
Lofty ambitions may belie frailness at heart (4)
I haven't cracked this one yet — but Fifteensquared have:
Middle letters of the words "ambi t ions m a y be l ie frai l ness"
A few withdrawn angsty teens perhaps (4)
Tattered blankets covering over old shoes (10)
I haven't cracked this one yet — but Fifteensquared have:
Blankets* around (o{ver} o{ld}). O for over would be valid in cricket.
Fair appeal leading to duck (4)
Crooked cop worked to import drug for drummer? (10)
I haven't cracked this one yet — but Fifteensquared have:
(Cop worked)* around E(=ecstasy drug)
Down
Toys left out of adverts (4)
I haven't cracked this one yet — but Fifteensquared have:
P[l]ugs(=adverts). The def refers to toy dogs, of which the pug is an example.
Take that lush present (7)
When mistreated it ruins media like microfiches? (12)
Rising temptation in market can be slaked (8)
I haven't cracked this one yet — but Fifteensquared have:
Bait< in sale
Former politician appearing in film for free (6)
Single unaccompanied guy inside making a scene maybe (7)
I haven't cracked this one yet — but Fifteensquared have:
One around stag(=unmarried man). The def would refer to making a scene in a play.
Dance piece with no intro being put in again (10)
I haven't cracked this one yet — but Fifteensquared have:
Reel(=dance) + [s]ection
Brand acquired by a foreign board is not fit for sale (12)
I haven't cracked this one yet — but Fifteensquared have:
(Mark(=brand) in une(=French for "a")) + table(=board)
Filthy state of food container finally made chefs cross (10)
I haven't cracked this one yet — but Fifteensquared have:
Grub(=food) + bin(=container) + last letters of mad e chef s cros s
Removed gunk from damaged Adele CDs (8)
Carnival city - as we see it - is wild (7)
I haven't cracked this one yet — but Fifteensquared have:
Rio(=carnival city due to its annual pre-lent carnival) + to us(=as we see it)
Building housing oddly ugly animal (7)
I haven't cracked this one yet — but Fifteensquared have:
Block(=building) around odd letters of u g l y
Golf instructor not playing quickly (6)
I haven't cracked this one yet — but Fifteensquared have:
Pro(=golf instructor?) + not*. I found this one the most contentious. There are pros in all sorts of sports and they don't just teach, so why specifically a golf instructor?
Leaders from the Senate meeting a Republican authority figure (4)
Type letters or click words in the clue