Catchy phrases describing a name in high gloss (7)
I believe the answer is:
slogans
'catchy phrases' is the definition.
'describing a name in high gloss' is the wordplay.
'describing' means one lot of letters goes inside another (describe can mean to form the outline of).
'name' becomes 'n' (common abbreviation e.g. on forms**).
'in' is an insertion indicator.
'high' is an anagram indicator (can mean drunk or on drugs and hence disordered).
'gloss' anagrammed gives 'slogs'.
'n' put inside 'slogs' is 'slogns'.
'a' inserted into 'slogns' is 'SLOGANS'.
(Other definitions for slogans that I've seen before include "Advertising phrases" , "Campaign messages" .)