Question

a small, unpleasant matter that spoils everything; a drawback (use "fly")

Accepted Answer

We enjoyed the play, but the fly in the ointment was not being able to find our car afterward. | It sounds like a good idea, but there must be a fly in the ointment somewhere.

Front	a small, unpleasant matter that spoils everything; a drawback (use "fly")
Back	We enjoyed the play, but the fly in the ointment was not being able to find our car afterward. \| It sounds like a good idea, but there must be a fly in the ointment somewhere.

Fly Ointment Small Unpleasant Matter Spoils Drawback Enjoyed