See one enigma resolved (7)
I believe the answer is:
imagine
'see' is the definition.
(I know that see is a more specific form of the action imagine)
'one enigma resolved' is the wordplay.
'one' becomes 'i' (Roman numeral).
'resolved' indicates anagramming the letters.
'enigma' is an anagram of 'magine'.
'i'+'magine'='IMAGINE'
(Other definitions for imagine that I've seen before include "Reckon" , "Assume" , "Fancy - Lennon song" , "Conceive in the mind" , "Picture, conceive" .)