ΔE 16.3, loose: different enough that you should pick on purpose. Flickering Flame is a little lighter, more muted, warmer than Clear Orange.
Not as a straight swap; see the closer alternatives below. Loose match (ΔE 16). Flickering Flame is a little lighter, more muted, warmer than Clear Orange.
The same difference applies the other way round: Clear Orange is a little darker, more saturated, cooler.
ΔE is the colour difference between our two swatch estimates: under about 6 is close, over about 15 is loose. Real paints also differ in finish, coverage and how they thin, so test before you commit.
See Clear Orange on the colour wheel See Flickering Flame on the colour wheel
All matches: Clear Orange equivalents · Flickering Flame equivalents