Clutered or Cluttered: How To spell?

The word Clutered is misspelled against Cluttered, which is past tense of "Clutter"

Cluttered has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings clu & ered which should not be misspelled with single 'T'
Wrong Spelling: clu-t-ered
Correct Spelling: clu-tt-ered
Check more misspelled words of Cluttered to spell it correct.