Crossword Genius

I fret less with files organised into spreads individually (4-10)

Ross

I believe the answer is:

self-fertilises

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'spreads individually' is the definition.
I know nothing about this answer so I can't judge whether this works.

'i fret less with files organised' is the wordplay.
'with' means one lot of letters go next to another.
'organised' is an anagram indicator.
'i'+'fret'+'less'+'files'='ifretlessfiles'
'ifretlessfiles' anagrammed gives 'SELF-FERTILISES'.

'into' acts as a link.

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