Across
Head of Defence follows one branch of military around protecting another in rural setting (8)
I haven't cracked this one yet — but Fifteensquared have:
the first/"Head" letter of D-[efence], following: RAF (Royal Air Force, "one branch of military") reversed/"around" and containing/"protecting" ARMY="another" branch of the military
Feeling about a quarter (6)
I haven't cracked this one yet — but Fifteensquared have:
definition: the haunch of an animal is also known as the hind quarter HUNCH="Feeling" around A (from surface)
Right to interrupt awful poet (4)
Toscanini initially upset with orchestration, it should be breezy (10)
I haven't cracked this one yet — but Fifteensquared have:
anagram/"with orchestration" of (Toscanini u-[pset])*
More mature book starts to be more daring (6)
I haven't cracked this one yet — but Fifteensquared have:
OLDER="More mature", with B (book) starting / going in front
Evasive action leads to swearing if Dawn French is recording (8)
I haven't cracked this one yet — but Fifteensquared have:
"leads"/leading letters of S-[wearing] I-[f] D-[awn]; plus EST="French [for] is"; plus EP (Extended Play record, a music recording)
Yogi Bear ultimately stops Boo-Boo becoming zoo attraction? (7)
I haven't cracked this one yet — but Fifteensquared have:
last/ultimate letters of [Yog]-I [Bea]-R stopping inside GAFFE="Boo-Boo"=minor mistake/accident for the surface reading, Yogi Bear and Boo-Boo are both cartoon characters from The Yogi Bear Show
Progress without regulation – to begin with that hurt Marx? (7)
I haven't cracked this one yet — but Fifteensquared have:
definition: Groucho Marx the comedian GO="Progress" outside of ("without"): beginning of R-[egulation] + OUCH="that hurt"
Quickly be silent for screening – 17’s brother mostly is (8)
I haven't cracked this one yet — but Fifteensquared have:
SH=shush="be silent" around/"screening" HARP-[o]="17's brother mostly" + IS (from surface) Harpo Marx was Groucho's [17ac] brother
The two making love on back of sofa pant? (6)
I haven't cracked this one yet — but Fifteensquared have:
B- O -TH, but making the O into RE+A BOTH="The two" O=zero in tennis="love" RE=about, concerning="on" A from back of sof-[A]
Doctor adapting an endangered species (5,5)
Complain about rep on vacation (4)
I haven't cracked this one yet — but Fifteensquared have:
CA (circa, approximately/"about") plus R-[e]-P vacated of its inner letter
Cut ending to Moon River (6)
I haven't cracked this one yet — but Fifteensquared have:
SEVER="Cut" plus ending to [moo]-N
Area policeman handling case of revenge in court (8)
I haven't cracked this one yet — but Fifteensquared have:
PC (Police Constable, "policeman") around the "case" (outer letters) of R-[eveng]-E; plus IN (from surface) + CT (court)
Down
Type of pasta a vehicle on motorway is carrying (8)
I haven't cracked this one yet — but Fifteensquared have:
A CAR ON="a vehicle on", with MI=M1="motorway" containing/carrying this
Surrounded by morning papers (4)
Somehow parried short sword (6)
I haven't cracked this one yet — but Fifteensquared have:
anagram/"Somehow" of (parrie-[d])*
22d
Bears eating, say, 3 bones (8,6)
Puzzle annoys over one thousand (e.g. 1,331) (6,4)
I haven't cracked this one yet — but Fifteensquared have:
RUBS="annoys" around/"over" both of: I="one" + K (kilo, "thousand"); plus CUBE=cube number e.g. 1,331 is equal to 11 cubed
After supporting small carbon light fitting (6)
I haven't cracked this one yet — but Fifteensquared have:
ONCE="After" e.g. 'once/after you arrive…'; following S (small) + C (atomic symbol for carbon)
What’s found inside commodes is toxic – stop! (6)
Lookalike not working with band, Queen (4,6)
Facetious old man’s boring flick books (8)
Sporting achievement of bowler – perhaps fast one (3,5)
Look on the bright side and exercise (4,2)
Next in line holds iron lower (6)
See 4
Charlie painting snake (4)
Type letters or click words in the clue