Sounds to have little strength this time (4)
I believe the answer is:
week
'this time' is the definition.
(period of time)
'sounds to have little strength' is the wordplay.
I cannot really understand how this works, but
'little' could be 'wee' (similar in meaning) and 'wee' is present in the answer.
A single letter 'k' remains which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for week that I've seen before include "A long time in politics?" , "Period of time; sounds like feeble" , "Seven days" , "Seven day period" , "Calendar period" .)