Forcibly take backless dress (3)
I believe the answer is:
rob
'forcibly take' is the definition.
'rob' can be an answer for 'take' (I've seen this in another clue). I'm not certain of the 'forcibly' bit.
'backless dress' is the wordplay.
'backless' means to remove the last letter.
'dress' becomes 'robe' (robing is a kind of dressing).
'robe' with its final letter taken off is 'ROB'.
Can you help me to learn more?
(Other definitions for rob that I've seen before include "Take without consent from the owner" , "Unlawfully take property from (someone)" , "Mug, say" , "Steal or purloin" , "Take something without the owner's consent" .)