Good-humoured judge with eyepiece (7)
I believe the answer is:
jocular
'good-humoured' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?
'judge with eyepiece' is the wordplay.
'judge' becomes 'j' (abbreviation for judge).
'with' means one lot of letters go next to another.
'eyepiece' becomes 'ocular' (synonyms).
'j'+'ocular'='JOCULAR'
Can you help me to learn more?
(Other definitions for jocular that I've seen before include "funny" , "Humorous, joking" , "With jokes and good humour" , "Humorous or playful" , "Given to telling gags (and having fun)" .)