Young animal provided in here, surprisingly (6)
I believe the answer is:
heifer
'young animal' is the definition.
'provided in here surprisingly' is the wordplay.
'provided' becomes 'if'.
'in' is an insertion indicator.
'surprisingly' indicates an anagram.
'here' with letters rearranged gives 'heer'.
'if' placed within 'heer' is 'HEIFER'.
(Other definitions for heifer that I've seen before include "Cow that has borne one or no calves" , "beast" , "a little lower" , "Young cow which has not yet given birth" , "part of stock" .)