Do it wrong around the end of August, just the same (5)
I believe the answer is:
ditto
'just the same' is the definition.
(I've seen this before)
'do it wrong around the end of august' is the wordplay.
'wrong' indicates an anagram.
'around' means one lot of letters goes inside another.
'the end of' indicates one should take the final letters.
The last letter of 'august' is 't'.
'do'+'it'='doit'
'doit' with letters rearranged gives 'dito'.
'dito' going around 't' is 'DITTO'.
(Other definitions for ditto that I've seen before include "Repeat the word(s) above" , "Duplicate" , "Dot it for the same again" , "In lists, the same again with two small marks" , "Repeat (instruction)" .)