Across
Five characters evidently following revolutionary piano course (8)
"The lady ain't for turning" – the initial form of Thatcher's mantra (4)
One conditionally released gets a job in gym (7)
Native Australians overcoming fetish about bush tea (7)
Escort drug dealer out of Portugal (5)
50% of girls in class give incorrect responses (9)
Old hit number I am performing with matron (2,10,3)
Ominous heathens demolished residence of London dignitary (3,7,5)
Somebody's providing ample food (3,6)
Happy, perhaps, and content to read war fiction (5)
Raver, rattling on outside, went on too long (7)
Never to be forgotten with the passing of time? Wrong (7)
Boss has mate round (4)
Left home to visit relative (8)
Down
Firm that originally rejected protective cover (4,3)
Separatists spout about forbidding pop music essentially (7,7)
His mentor scattered particles in vacuum tubes? (9)
Beginning to rake in loads of money in minor charges (5)
During economic upswing nurses primarily lost out (2,5)
After metamorphosis, Samsa leaves (5)
Despondent men didn't show up at work (4,2,3,5)
Satisfied with fruit drop (7)
Historical African island, one to the north of Angola (9)
Oral massage perfect, but not entirely necessary (7)
Composer ignored by a novelist and painter (2,5)
In difficult situation having finished active service? (2,1,4)
Northerner who sings bass given choice of court cards (5)
Sea rangers regularly observed seabirds (5)
Type letters or click words in the clue