Lower catch by lowers in brief? (6)
I believe the answer is:
nether
'lower' is the definition.
(as in nether regions)
'catch by lowers in brief?' is the wordplay.
'catch' becomes 'net' (net can mean to catch).
'by' says to put letters next to each other.
'lowers in brief?' becomes 'her' (I can't explain this - if you can you should give a lot more credence to this answer).
'net'+'her'='NETHER'
Can you help me to learn more?
(Other definitions for nether that I've seen before include "These regions are hell, the underworld" , "Lower, like regions or garments" , "inferior" , "Lower in position" , "Lower; Dutch '-lands'" .)