Allowed to carry thin glove (8)
I believe the answer is:
gauntlet
'glove' is the definition.
(gauntlet is a kind of glove)
'allowed to carry thin' is the wordplay.
'allowed' becomes 'let' (to let is to allow or permit).
'to' says to put letters next to each other (I've seen this in other clues).
'carry thin' becomes 'gaunt' (I can't explain this - if you can you should believe this answer much more).
'let' after 'gaunt' is 'GAUNTLET'.
Can you help me to learn more?
(Other definitions for gauntlet that I've seen before include "Stout glove" , "Glove of armoured leather, thrown down as a challenge" , "Throw it down to offer a challenge" , "Strong glove, thrown down in challenge" , "Knight's glove" .)