Give an indication that you hear (6)
I believe the answer is:
assign
'give an indication that you hear' is the definition.
'assign' can be an answer for 'give' (I've seen this before). I am not sure about the rest of the definition.
'give an indication' is the wordplay.
'give an' becomes 'as' (I can't explain this - if you can you should give a lot more credence to this answer).
'indication' becomes 'sign' (I've seen this in another clue).
'as'+'sign'='ASSIGN'
Can you help me to learn more?
(Other definitions for assign that I've seen before include "(Of a job) allocate to someone" , "Give a task to" , "Allot, allocate" , "Allocate; designate" , "Allocate (a task or duty)" .)