Some great (testing) clues this week and I've finished the grid, however, one clue answer's wordplay escapes me , I have an idea, but can't quite make it work.
Has anyone got an explanation for 29 Across, which is:
I don't toe the editorial line maybe envisaged (8) - M - G - N - D
It must be IMAGINED, (envisaged)
I + MAG(az)INE / editorial.
And that's it for me I'm afraid, can't see what else is involved