Parent dancing by river shows charm (9)
I believe the answer is:
enrapture
'charm' is the definition.
(thesaurus)
'parent dancing by river' is the wordplay.
'dancing' indicates an anagram.
'by' means one lot of letters go next to another.
'river' becomes 'ure' (River Ure).
'parent' is an anagram of 'enrapt'.
'enrapt'+'ure'='ENRAPTURE'
'shows' is the link.
(Other definitions for enrapture that I've seen before include "Give intense pleasure to" , "Transport" , "Ape Turner (anag.)" , "entrance" , "Bewitch" .)