Disturbed male bears can be focussed like this (5,4)
I believe the answer is:
laser beam
'be focussed like this' is the definition.
The definition suggests a singular noun which matches the answer.
'disturbed male bears' is the wordplay.
'disturbed' indicates anagramming the letters (the order of letters is disturbed).
'male'+'bears'='malebears'
'malebears' with letters rearranged gives 'LASER BEAM'.
'can' acts as a link.
Can you help me to learn more?
(Other definitions for laser beam that I've seen before include "Shaft of light or electromagnetic radiation" , "Column of intensified light" , "penetrating light" , "Intense ray of light" , "Shaft of light or electro-mechanic radiation" .)