Try dessert containing large nut (8)

'nut' is the definition.
(I know that ball can be written as testicle)

'try dessert containing large' is the wordplay.
I cannot quite see how this works, but
'try' could be 'test' (synonyms) and 'test' is found within the answer.
'large' could be 'l' (eg in clothes sizes) and 'l' is located in the answer.
'dessert' could be 'ice' (ice is a kind of dessert) and 'ice' is found within the remaining letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?