Water flowing from pipe down bottom of drain stopping soon (7)
I believe the answer is:
shannon
'water flowing' is the definition.
The definition suggests a singular noun which matches the answer.
'pipe down bottom of drain stopping soon' is the wordplay.
'pipe down' becomes 'sh' (both can mean 'be quiet').
'bottom of' suggests the final letters.
'stopping' indicates putting letters inside (inserted letters stop or plug a gap).
'soon' becomes 'anon' (synonyms).
The final letter of 'drain' is 'n'.
'n' placed within 'anon' is 'annon'.
'sh'+'annon'='SHANNON'
'from' is the link.
Can you help me to learn more?
(Other definitions for shannon that I've seen before include "Irish airport" , "Irish banker" , "Irish 10" , "Have some nosh, Nan, down by the river" , "Major Irish river" .)