1d.desire trophy?i'd the very thing by end of play(8)C?P???T?
12a.gloomy state of mind returned?that's fate(4)??O?
26d.farewell from man cut short(4)?A?E
thanks in advance
1d trophy = CUP, i'd = ID, the very thing = IT, end of (pla)y = Y, desire = CUP-ID-IT-Y.
12a mood reversed = DOOM.
26d Latin for farewell is VALE, which is vale(t) cut short.