Had enough of awful loathsome characters inside (4)
I believe the answer is:
full
'had enough' is the definition.
The answer and definition are not the same part of speech. However, adjectives and past participle verbs sometimes mean the same thing.
'awful loathsome characters inside' is the wordplay.
'inside' indicates a hidden word.
'FULL' can be found hidden inside 'awful loathsome characters'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for full that I've seen before include "(Of a figure) plump or rounded" , "Complete; replete" , "Having no empty space" , "At capacity; rounded" , "At maximum capacity" .)