Exclusive tile design first (7)
I believe the answer is:
elitist
'exclusive' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'tile design first' is the wordplay.
'design' is an anagram indicator.
'first' becomes 'ist' (ist resembles 1st).
'tile' anagrammed gives 'elit'.
'elit'+'ist'='ELITIST'
Can you help me to learn more?
(Other definitions for elitist that I've seen before include "Favouring high society" , "One who believes that certain people are superior" , "Its tile (anag.)" , "Favouring a select group" , "(One who is) discriminating in favour of select few" .)