Extend wicked son's glee and go for a walk (7,4,4)
I believe the answer is:
stretch ones legs
'go for a walk' is the definition.
I know nothing about this answer so I can't tell whether it can be defined by this definition.
'extend wicked son's glee' is the wordplay.
'extend' becomes 'stretch' (synonyms).
'wicked' is an anagram indicator.
'sons'+'glee'='sonsglee'
'sonsglee' with letters rearranged gives 'oneslegs'.
'stretch'+'oneslegs'='STRETCH ONES LEGS'
'and' acts as a link.
Can you help me to learn more?
(Other definitions for stretch ones legs that I've seen before include "Take a short walk" , "Go for a short walk" , "Take a walk for exercise" , "as Procrustes might do" , "stroll" .)