Hope this works
It’s symmetrical if you turn it upside down, but not if given a quarter turn.
All the clues are in order.
ACROSS
Chance acquaintance embraces this writer, a tonic
Left inside nearest to fire
Special school for geeky swot
NZ- style picnic, no good in endless shower
One in skiing venue botched test – in appropriate gear
Protein creating a fellow’s bodily firmness
Plunge into lake, e.g. Windermere? _____, getting tangled wit grim reed
Fancy! Prisoner’s fed with such bivalves
Possibly impenetrable lock securing one wrongfully
Less than half tobacco crumbled with eg naan – it flavours snuff
Openings of minute measure in human body yielding sweat
How Texans address others in reverse of liberal song (apostrophe)
A glacis fashioned in limestone
A divine, I translated Latin including nothing extra
Shake second of dice in board game
Gathering in essence led by bishop
TV feature presenting antithesis of Con Government
Rank of former cavalry officer and others in old-fashioned clothing
DOWN
Wherein you might see pharaoh’s head, height swathed inperfume?
Antidepressant I lug around outside
Pet you can get from Tesco’s
* Sensational
Senior yeoman bringing up some longhorn oxen
Nanny he treated with a pill: a protein constituent
Unit of weight with origins in Korea and the Indies
I’m flagging around end of marathon, in one piece but antiquated
Striving exists in what represents Japan?
Type notes about Europe
Prudent, skirting small island of crude rock
Endless hell? Girl coming round to give young parents a break
Muscle put into excursion in a way that should attract punters
What’s ground for Abos? Not one will include made-up road
Baronet holds urn up, revealing votes cast
Bar (of a kind) that converts club into pub
Barley producing great gallons
I’m husky – hate initially having to leave singers
The grid is 12 X 12 with no bars or numbers