This is a strange suit combination.

Any reasonable play is OK, plus one you probably wouldn't consider.

1) Cash the ace and then play small towards the queen and duck if nothing of interest happens.

2) Cash the ace and then play small towards the queen and play the queen if nothing of interest happens.

3) Play small towards the queen, if this loses to the king, finesse the ten next.

All three lines have about a 50% chance of success.

Thanks to Alan Mould for this problem.