The unclued lights are of a kind. Two solutions are initials.

Across

1    Officers’ training school – place to write music – cello arrangement with two notes (5,7)
10    Fertile Spanish plain, say, in Virginia (4)
12    Moorland bird that pesters the female? (3-7)
14    Rules regularly presented author’s initials (3)
15    Clear control of former NZ live news website (8)
22    Seating for cowsheds (6)
24    Almost imperceptibly moves lips (5)
26    Smartest agent’s not all there – most dubious (9)
27    Work in gold, say, running off with the ring (9)
29    On reflection some present-day Aussie cricketer (5)
31    King in a French shack, not harmed (6)
34    Got rid...