A child finally gets round labyrinth full of wonder (6)
I believe the answer is:
amazed
'full of wonder' is the definition.
(someone amazed is full of wonder or shock)
'a child finally gets round labyrinth' is the wordplay.
'finally' says to take the final letters.
'gets round' means one lot of letters goes inside another.
'labyrinth' becomes 'maze' (synonyms).
The final letter of 'child' is 'd'.
'a'+'d'='ad'
'ad' going around 'maze' is 'AMAZED'.
(Other definitions for amazed that I've seen before include "Overwhelmed with wonder" , "Staggered" , "Astonished, astounded" , "Greatly surprised, never would have thought it" , "was stunning" .)