Is afraid fares must be revised (5)
I believe the answer is:
fears
'is' is the definition.
Although both the answer and definition are verbs in their -s form, I can't see how they can define each other.
'afraid fares must be revised' is the wordplay.
'fares' anagrams to 'FEARS'.
Though, I am not clear how the anagram is indicated.
Can you help me to learn more?
(Other definitions for fears that I've seen before include "Apprehensions" , "Is afraid of" , "Concerns, dreads" .)