Cut off end of beard plus other facial hair when cycling (6)
I believe the answer is:
detach
'cut off' is the definition.
(I've seen this in another clue)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for detach that I've seen before include "Remove, cut out" , "Disengage (something) and remove it" , "Remove from contact" , "His timid love song (T. S. Eliot)" , "Separate, disconnect" .)