It shows level of current temperature after girl turns up on English river (7)
I believe the answer is:
ammeter
'it shows level of current' is the definition.
The definition suggests a singular noun which matches the answer. I also know that 'current' relates to this answer.
'temperature after girl turns up on english river' is the wordplay.
I cannot quite understand how this works, but
'temperature' could be 't' (abbreviation) and 't' is located in the answer.
'english' could be 'e' (abbreviation) and 'e' is located in the answer.
'river' could be 'r' and 'r' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for ammeter that I've seen before include "Current-measuring instrument" , "Device that measures the flow of electrical current" , "Current-measurer" , "Instrument measuring electrical current" , "Device measuring electric current" .)