Child seeing the 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 anagramming the letters (the answer comes from or 'of' the letters).
'the'+'guard'='theguard'
'theguard' with letters rearranged gives 'DAUGHTER'.
'seeing the changing' acts as a link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for daughter that I've seen before include "Female offspring" , "Female child" , "Family member" , "'''Don't put your ... on the stage, Mrs Worthington'' (Noel Coward) (8)'" , "Family relative" .)