Renovated pitch put back to accommodate English date (6,2)
I believe the answer is:
tarted up
'renovated' is the definition.
'pitch put back to accommodate english date' is the wordplay.
'pitch' becomes 'tar' ('tar' can be a synonym of 'pitch'**).
'back' says the letters should be written backwards.
'to accommodate' is an insertion indicator.
'english' becomes 'e' (abbreviation).
'date' becomes 'd' (common abbreviation eg in DOB, date of birth).
'put' reversed gives 'tup'.
'e'+'d'='ed'
'tup' enclosing 'ed' is 'tedup'.
'tar'+'tedup'='TARTED UP'
(Other definitions for tarted up that I've seen before include "Improved the appearance" , "Improved superficially" , "well turned out?" , "decorated" .)