Releases the queen's venom in Belgium for online deception (3,5)
I believe the answer is:
bee sting
'deception' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.
'releases the queen's venom in belgium for online' is the wordplay.
I cannot quite see how this works, but
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'in' is present in the answer.
'belgium' could be 'b' (international vehicle registration code) and 'b' is found in the answer.
'online' could be 'e' (as in e-mail or e-commerce) and 'e' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for bee sting that I've seen is " Pain risked by apiarist?".)