Rush to the youth leader with a shrill voice (5)
I believe the answer is:
reedy
'shrill voice' is the definition.
'reedy' can be an answer for 'shrill' (I've seen this before). I'm unsure of the 'voice' bit.
'rush to the youth leader with a' is the wordplay.
I cannot really understand how this works, but
'rush' could be 'reed' (I've seen this before) and 'reed' is found within the answer.
'youth' could be 'y' and 'y' is located in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for reedy that I've seen before include "Of voice, having thin high tone" , "Long and thin" , "Shrill, or piping" , "Like a stick insect" , "(Of voice) high/thin" .)