Male that indicates the passing of wind (4)
I believe the answer is:
cock
This could be a double definition.
'male that indicates the passing' is the first definition.
'cock' can be an answer for 'male' (male chicken). I am not sure about the rest of the definition.
'wind' is the second definition.
(thesaurus)
'of' is the link.
Can you help me to learn more?
(Other definitions for cock that I've seen before include "Lift" , "Small heap of hay" , "Adult male bird" , "early rouser" , "Pull back a gun's hammer in readiness to shoot" .)