Frustrates change of direction in glittering society (7)
I believe the answer is:
blights
'frustrates change' is the definition.
I can't judge whether this defines the answer.
'direction in glittering society' is the wordplay.
'direction' becomes 'L' (short for left).
'in' indicates putting letters inside.
'glittering' becomes 'bight' (I can't explain this - if you can you should believe this answer much more).
'society' becomes 's' (common abbreviation in names of organisations).
'l' inserted inside 'bight' is 'blight'.
'blight'+'s'='BLIGHTS'
'of' acts as a link.
Can you help me to learn more?
(Another definition for blights that I've seen is " Causes to wither".)