Across
Boy and I in children's game knocked over champions (8)
I haven't cracked this one yet — but Fifteensquared have:
LAD [boy] and I in a reversal [knocked over] of SNAP [children’s game] – the Paladins were the foremost warriors of Charlemagne’s court
Stunned in the morning by Observer crossword (6)
24a
Oatmeal exceptionally fine in dish (4,4)
Rider in crusade flanked by monarch and Scotsman (10)
I haven't cracked this one yet — but Fifteensquared have:
QUEST [crusade] between ER [monarch] and IAN [the crossword Scotsman – although most of the Scottish ones I know spell it IAIN]
Finisher, not starter? That's very good! (6)
It's destructive, showing anger about traditional Bible (8)
Grow weak, left out in pain (7)
There's little right in fiddle creating dispute (7)
I haven't cracked this one yet — but Fifteensquared have:
R [little right] in WANGLE [fiddle]
Laissez-faire type? Not sailor from African country (8)
Activity on rugby field trapping a bone (6)
I haven't cracked this one yet — but Fifteensquared have:
SCRUM [activity on rugby field] round A
Sausage roll made at Barking (10)
See 10
Troublesome kid eating egg with a little bit of extra salt (6)
I haven't cracked this one yet — but Fifteensquared have:
BRAT [troublesome kid] round O [egg] + E[xtra]
Breeding of man covered in grass (8)
Down
Ex-PM keeps appealing to the top people in the country (8)
I haven't cracked this one yet — but Fifteensquared have:
[David] CAMERON [ex PM] round U [appealing to the top people] I wasn’t aware of this spelling but find that it’s the French name, which seems rather perverse, since the U is not a crossing letter, but it allows Pasquale a witty surface
24d
Travelling fans late — coaches not moving here? (4,4)
In a row nothing upset listener (6)
19d
Hearing US style, unpleasant modern form of our language (7,7)
Cleric, very big fool, set up religious festival (8)
I haven't cracked this one yet — but Fifteensquared have:
Reversal [set up] of REV[erend] – cleric] + OS [very big] + SAP [fool]
I tire and can go funny — caused by medical treatment? (10)
Abandon rail transport, losing heart with delay (6)
Moving up in trade gaining pounds, showing business sense? (10)
I haven't cracked this one yet — but Fifteensquared have:
Anagram [moving] of UP IN TRADE + L [pounds]
Cheats in society, endlessly calm (8)
I haven't cracked this one yet — but Fifteensquared have:
S [society] + WINDLES[s] [endlessly calm]
City road goes round country to the north (8)
I haven't cracked this one yet — but Fifteensquared have:
LANE [road] round USA [country] + N [north]
See 4
One unpleasant person outside work, one with fourteen members (6)
I haven't cracked this one yet — but Fifteensquared have:
I SOD [one unpleasant person] round OP [work] – Wikipedia tells me that isopods have seven pairs of jointed limbs on the thorax – fourteen members
Channel links Home Counties to "abroad" (6)
See 2
Type letters or click words in the clue