Child sees Changing of the Guard (8)
I believe the answer is:
daughter
'child' is the definition.
(I know that daughter is a type of female offspring)
'of the guard' is the wordplay.
'of' indicates an anagram (the answer comes from or 'of' the letters).
'the'+'guard'='theguard'
'theguard' with letters rearranged gives 'DAUGHTER'.
'sees changing' is the link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for daughter that I've seen before include "Girl" , "Family member" , "Family relative" , "Close relative" , "The guard (anag.)" .)