Inconstant crawler? (3)
I believe the answer is:
ant
'crawler?' is the definition.
(an ant crawls)
'inconstant' is the wordplay.
'ANT' is hidden within the letters.
However, I'm uncertain how this is indicated.
Can you help me to learn more?
(Other definitions for ant that I've seen before include "maybe in hill" , "` `Go to the ... thou sluggard' '" , "Worker on the hill" , "one living in colonies" , "Dec's long-time partner" .)