Improve quality of frolicking disheartened children (6)
I believe the answer is:
enrich
'improve quality' is the definition.
'enrich' can be an answer for 'improve' (enriching is a kind of improving). I am not certain of the 'quality' bit.
'frolicking disheartened children' is the wordplay.
'frolicking' indicates anagramming the letters.
'disheartened' says to hollow out the word (remove centre letters) (the middle or heart is removed).
'children' with its centre taken out is 'chiren'.
'chiren' with letters rearranged gives 'ENRICH'.
'of' is the link.
Can you help me to learn more?
(Other definitions for enrich that I've seen before include "Add to and improve" , "Decorate" , "Improve, soil say" , "Make wealthy or improve the quality" , "Give money" .)