Not The Saturday Prize Puzzle

NTSPP - 351 by Elgar
Meeting Points

In twelve clues wordplay ignores one of six two-letter pairs (each pair therefore occurring twice). All other clues (though not some letter counts) are normal.
1 & 6 (across different time zones) and 31 may be considered meeting points.
Purists will argue that this preamble and square 1 should both contain a comma.