Collocations for spelling - noun

correct, incorrect
conventional, proper, usual
alternate (esp. AmE), alternative, different, variant
original
American, English, etc.
phonetic

use
check
correct
improve

error, mistake
bee (esp. AmE), test
dictionary, rule
variant
reform

in … spelling
In American spelling ‘travelled’ only has one ‘l’.

spelling for, spelling of
The document uses the British spelling for caesium.

be good, bad, etc. at spelling