Across
That is a sign of penitence, in a way (8)
Car maker left out of TLS book reviews? (6)
An embankment's architect (4)
One bird giving me a secret about another (10)
Sex talk almost crucial (5)
Felt I tuned it badly (8)
I'm into this, interrupting sadly prostrate conjuror (15)
Part-time board member? (10,5)
Excessive butt on one girl (8)
Sweep a little to hide marks (5)
Without power, playing Shelley's covers album (10)
Match action (4)
After that, sleeping? (6)
Not a word published — knowledge wasted (8)
Down
Corpse in one rotten state (7)
Border I'm filling in (5)
Having beef, vanilla slices next (11)
Its art is not laid out in squares (15)
I am willing to give it back (3)
A country boy upset about a famous exile (5,4)
A little node protecting upturned sea shell? (7)
New artillery parts for a wife / attorney (5,6)
Joker — turn over to show face (5,2,2)
Train to have wheels in middle (7)
50 per cent left with room to fill grid (7)
Bowled, eg, bowl (5)
Close friends, to some extent (3)
Type letters or click words in the clue