Superman? Give that woman nothing (4)
I believe the answer is:
hero
'superman?' is the definition.
(Superman is a superhero)
'give that woman nothing' is the wordplay.
'give' says to put letters next to each other.
'that woman' becomes 'her' ('her' refers to a woman).
'nothing' becomes 'O' (O resembles 0).
'her' next to 'o' is 'HERO'.
(Other definitions for hero that I've seen before include "Man admired for courage and achievement" , "victor" , "Leander's lover, who committed suicide when he drowned" , "Rochester maybe required?" , "One looked up" .)