Gag, a very poor one snubbing women (5)
I believe the answer is:
retch
'gag' is the definition.
(I know that gag can be written as retch)
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for retch that I've seen before include "Reach" , "Unsuccessful effort to vomit" , "Sound and seem to vomit" , "Strain to be sick" , "throw up" .)