Clearer / More clearer
Different formsUse clearer as the ordinary comparative of clear. Do not add more before clearer, because that marks the comparison twice.
Clearer
Use when
You use the standard comparative form of clear in ordinary formal writing.
Example
“The revised recommendation is clearer.”
More clearer
Use when
Avoid this double comparative because clearer already marks the comparison.
Example
“Replace 'the revised paper is more clearer' with 'the revised paper is clearer'.”
Quick check
more clearer, much more clearer
Usage note