Describes Garda with blonde hair locally - you got me there? (1,4,3)
I believe the answer is:
a fair cop
'hair locally you got me there?' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'describes garda with blonde' is the wordplay.
I cannot quite understand how this works, but
'blonde' could be 'fair' ('fair' can be similar in meaning to 'blonde') and 'fair' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for a fair cop that I've seen is " Deserved arrest or discovery as by an equitable policeman".)