Style talk on 3rd of June (7)
I believe the answer is:
pattern
'style' is the definition.
(I've seen this before)
'talk on 3rd of june' is the wordplay.
'talk' becomes 'patter' (I have seen 'Rapid talk ' mean 'patter' so perhaps 'talk' could also mean 'patter').
'on' means one lot of letters go next to another.
'3rd of june' becomes 'n' (3rd letter of 'june').
'patter'+'n'='PATTERN'
(Other definitions for pattern that I've seen before include "Example; decorate" , "Model - design - example" , "typical example" , "Blueprint, design" , "Design for copying" .)