Child not wanting to spend penny here? (5,4)
I believe the answer is:
piggy bank
'child not wanting to spend penny here?' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
This is all the clue.
Can you help me to learn more?
(Other definitions for piggy bank that I've seen before include "There may be money in this" , "Porcine penny collector" , "Small saver's receptacle" , "Money box (for swine?)" , "Pocket money container" .)