A man keeping Zoe short - that dangerous woman! (6)
I believe the answer is:
amazon
'dangerous woman' is the definition.
'amazon' can be an answer for 'woman' (amazon is a kind of woman). I'm not sure about the 'dangerous' bit.
'a man keeping zoe short' is the wordplay.
'keeping' means one lot of letters goes inside another.
'short' means to remove the last letter.
'zoe' with its last letter taken away is 'zo'.
'man' placed around 'zo' is 'mazon'.
'a'+'mazon'='AMAZON'
'that' acts as a link.
Can you help me to learn more?
(Other definitions for amazon that I've seen before include "S. America's longest river" , "Net giant" , "One of a mythic nation of women warriors" , "Female warrior of Greek myth" , "running through Peru, Colombia and Brazil" .)