Minima
If I could add another thought Snigs.
It maybe that your IMC MDH, say 750' QFE is higher than the VMC OCH, say 550'.
A cloud break is not required, only that you have visual reference with the runway i.e. the associated lighting. You may be still well within cloud on the approach when the lighting is identified, very common nowadays with high intensity white approach lights. When turned up high they can penetrate through a lot of cloud. With such reference you may continue the approach below your minima to the visual circling minima or land ahead of course. Don't forget the 1800m viz requirement that you must have for landing before you commence the proc.