One last one that has really got me stumped.
17d Perform as though spoken / Plan road reconstruction as spoken ?a?l?f?o
Not completely sure of the 'f' or even the 'o' to be honest - although more sure of the o
(26a was Cancelling out / When lying in flu is terrible, cancelling any positive effect for which I had ??l?i?y?n? - came up with falsifying from the solver although that answer does not entirely look right to me in terms of the clue)
Any pointers?