Laid out with gaps, changes to lower case when written over maybe? (6)
I believe the answer is:
spaced
'laid out with gaps' is the definition.
(spaced apart)
I don't understand how the remainder of the clue works.
(Other definitions for spaced that I've seen before include "Separated by gaps" , "set some distance apart" , "positioned at intervals" , "Placed at intervals" , "strung out" .)