Right height in English river (5)
I believe the answer is:
rhine
'river' is the definition.
(Rhine is an example)
'right height in english' is the wordplay.
'right' becomes 'r' (common abbreviation).
'height' becomes 'h'.
'english' becomes 'e' (abbreviation).
'r'+'h'+'in'+'e'='RHINE'
(Other definitions for rhine that I've seen before include "Flower" , "Cologne's river" , "River flowing from Switzerland, through Germany, to the North Sea" , "River, rising in Switzerland and flowing into the North Sea" , "River rising in Alps, with mouth at Rotterdam" .)