Second of three formidable words (3)
I believe the answer is:
mid
'second' is the definition.
Both the answer and definition are adjectives. Maybe they are linked in a way I don't understand?
'three formidable words' is the wordplay.
'MID' is hidden within the letters.
However, I'm unsure how the hidden word is indicated.
'of' is the link.
Can you help me to learn more?
(Other definitions for mid that I've seen before include "Dim sort of prefix" , "Of the central part" , "Prefix meaning centre" , "Denote the centre point" .)