Go easy - Mabel is upset (5)
I believe the answer is:
amble
'go easy' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Maybe there's a link between them I don't understand?
'mabel is upset' is the wordplay.
'is upset' is an anagram indicator (I've seen 'are upset' mean this).
'mabel' is an anagram of 'AMBLE'.
Can you help me to learn more?
(Other definitions for amble that I've seen before include "Go at a leisurely gait" , "Meander" , "Casual walk" , "Walk in a leisurely way" , "promenade" .)