It acts somehow without moving (6)
I believe the answer is:
static
'it acts somehow without moving' is the definition.
The definition suggests a singular noun which matches the answer.
'it acts somehow' is the wordplay.
'somehow' indicates anagramming the letters.
'it'+'acts'='itacts'
'itacts' is an anagram of 'STATIC'.
Can you help me to learn more?
(Other definitions for static that I've seen before include "Stuck in a traffic jam" , "problem with radio reception" , "irritation for the listener?" , "Inert or passive, like some electricity" , "Not moving or changing" .)