Separatation between different types of clues

[Cwpute]

In harder difficulties (and even sometimes in easier ones) there can be an overwhelming amount of clues available:

Maybe using a bit more negative space to separate clues from each others, and grouping same clues types trying not to separate same could help better understand what clues you're working with, and spot the ones you want to get back to/have already worked with.
In this example, this could look like this:

[timcharper]

I actually have a bit of space between vertical clues for this (because of grouping)

This is a good idea overall, it does make layout calculation a bit more complicated though