Across
American sailor circling shore, by the way (7)
Drunken rugby player, mostly stylishly dressed (7)
Old pugilist from Britain and a figure from Spain (5)
People in a party of left-wing English radicals initially switching sides (9)
I haven't cracked this one yet — but Fifteensquared have:
l[evellers] ( left wing English radicals ) with the l changed to R (switching sides)
Expressionist composer's chosen new pupil of his (10)
Case of tequila? Cheers and cheerio! (2-2)
It detects law-breaking beer fans, full of energy on drug (5,6)
I haven't cracked this one yet — but Fifteensquared have:
SPEED (drug) + CAMRA (CAMpaign for REAL ALE – beer fans) round E (energy)
Fashion designer with winning clothing male modelled in advance (7,4)
Ship — and what one may carry leaving Cuba's capital (4)
I haven't cracked this one yet — but Fifteensquared have:
c[argo] minus c[uba]
Home rule divides party giving offence (10)
I haven't cracked this one yet — but Fifteensquared have:
In (home) + R (rule) in (dividing) FACTION (party)
Democrat cast a ballot in English city with loyalty (9)
I haven't cracked this one yet — but Fifteensquared have:
D (Democrat) + VOTED (cast a ballot) in ELY (English city)
Some shenanigans turning silly (5)
Colour's maintained on huge screen (7)
Item destined for bathroom old men put in lounge (3,4)
I haven't cracked this one yet — but Fifteensquared have:
O (old) + OR (men) in LOLL (lounge)
Down
Little girl following Jack's elder sister (6)
Thugs picked up Elizabethan fashion items (6)
Tendency to be nosy about uninhibited model (10)
I haven't cracked this one yet — but Fifteensquared have:
PRY (be nosy) round OPEN (uninhibited) + SIT (model)
Clean vessel boarded by new leader (5)
Economist who wrote a report the night before cracking game (9)
Some meat sandwiches left for a bunch of zealots (4)
What a day! To start with, this guy made a beastly noise (8)
Perhaps islander's reason for not staging play (8)
Drink from top composer not finishing round (10)
Mythic figures from Greece need muse, I suspect (9)
Waste shilling on a pair of queens? (8)
Gallons swallowed in George's house — might this result? (8)
Asian leader toppled Asian leader? Commotion follows! (6)
A European supplier of oil needing treatment (6)
Liar shocked about year one's spent in Doha (5)
Discharging debts, inclined to work for boss (4)
Type letters or click words in the clue