Apparently goes southeast to the river (5)
I believe the answer is:
seems
'apparently goes' is the definition.
The definition and answer can be both to do with perception as well as being verbs in their -s form.
Maybe there's an association between them I don't understand?
'southeast to the river' is the wordplay.
'southeast' becomes 'SE' (synonyms).
'to the river' becomes 'ems' (I've seen this before).
'se'+'ems'='SEEMS'
Can you help me to learn more?
(Other definitions for seems that I've seen before include "Appears, looks" , "Gives a certain impression" .)