Sounds made by seagulls in stable yard (4)
I believe the answer is:
mews
This might be a double definition.
'sounds' is the first definition.
(mew is a kind of sound)
'seagulls in stable yard' is the second definition.
'mews' can be an answer for 'seagulls' (mew is a kind of seagull). I'm not sure about the 'in stable yard' bit.
'made by' is the link.
Can you help me to learn more?
(Other definitions for mews that I've seen before include "Cries like a gull" , "sounds catty" , "Street of houses formerly used as stables" , "Catcalls" , "small street" .)