Across
Oxygen coming in a little lower, excellent source of fuel (8)
Muted sound when treacherous fascist backed (3-3)
Flying pig? (6)
Comment on article not finished off (8)
15a
Might one be looking up a Spoonerism for Mrs Malaprop? (11)
Arresting boxing scrap, very exciting (4-6)
See 12
Second US president back in A&E — cause of dysentery? (7)
Potential success is in doughnuts or fried onions with salt (6,4)
Fish stick bought at seaside (4)
Container for flowers, little one filled with primroses initially on plot (5,3)
Sept, Nov: Dec remains (6)
County boundary approached by member of colony (6)
One with deep ground in which body finally buried, watchful (4-4)
Down
Criminal slain in North Arabian desert — we are all in it together (2,3,2,2,6)
Where informal expressions found to align with Syrian code, oddly translated (5,10)
Stick all fingers and thumbs right into sponge cake (10)
Setter throwing up egg and a piece of chicken (7)
Double first's ultimate achievement (4)
Wind blows at 3mph — that should be a breeze (5,3,7)
Figure meat and grain eaten by King Edward, say, part of English course (9,6)
Borrow cooler jacket (10)
Stop drug, nothing injected (7)
Cat rolling up in the early hours, awake (4)
Type letters or click words in the clue