I quietly tried struggling round strong current (7)
I believe the answer is:
riptide
'strong current' is the definition.
'riptide' can be an answer for 'current' (riptide is a kind of current). I am not sure about the 'strong' bit.
'i quietly tried struggling round' is the wordplay.
'quietly' becomes 'p' (p for piano and quiet).
'struggling' indicates an anagram (the letters struggle or wriggle into a new form).
'round' is an insertion indicator.
'tried' with letters rearranged gives 'rtide'.
'i'+'p'='ip'
'ip' placed within 'rtide' is 'RIPTIDE'.
Can you help me to learn more?
(Other definitions for riptide that I've seen before include "Strong surface current flowing outwards from a shore" , "turbulent waves" , "Fast-moving sea" , "very choppy waters" , "stretch of turbulent water" .)