Digital growth if learning is distributed (10)
I believe the answer is:
fingernail
'digital growth' is the definition.
(digit as in finger or toe)
'if learning is distributed' is the wordplay.
'is distributed' indicates anagramming the letters.
'if'+'learning'='iflearning'
'iflearning' is an anagram of 'FINGERNAIL'.
(Other definitions for fingernail that I've seen before include "extreme protection results" , "Part of hand" , "One in ten" .)