Head to the borough and splash out! (2,2,4)
I believe the answer is:
go to town
'splash out' is the definition.
(I've seen this before)
'head to the borough and' is the wordplay.
I cannot quite understand how this works, but
'to' is present in the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for go to town that I've seen before include "Be most thorough" , "let rip!" , "Behave extravagantly" , "Splash out" , "Make an effort" .)