Glued in as a means to treat (7)
I believe the answer is:
indulge
'treat' is the definition.
(I know that indulge is a more specific form of the action the treat)
'glued in as a means to' is the wordplay.
'as a means to' indicates an anagram (the letters are a means of achieving the answer).
'glued'+'in'='gluedin'
'gluedin' anagrammed gives 'INDULGE'.
(Other definitions for indulge that I've seen before include "Satisfy (an interest)" , "pet" , "Allow (someone) to enjoy a pleasure" , "Mollycoddle -- eluding (anag)" , "Satisfy (a desire)" .)