Cultural excursion to see art ground out (5,4)
I believe the answer is:
grand tour
'cultural excursion' is the definition.
'grand tour' can be an answer for 'excursion' (thesaurus). I'm unsure of the 'cultural' bit.
'art ground out' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'art'+'ground'='artground'
'artground' anagrammed gives 'GRAND TOUR'.
'to see' acts as a link.
Can you help me to learn more?
(Other definitions for grand tour that I've seen before include "noble attempt at cultural improvement" , "educational trip" , "big journey" , "long trip" .)