Is a lame dog helpless to get over it? (5)
I believe the answer is:
stile
'is a lame dog helpless' is the definition.
I can't tell whether this defines the answer.
'get over it?' is the wordplay.
'get' becomes 'sile' (I am not sure about this - if you are sure you should believe this answer much more).
'over' is an insertion indicator.
'sile' enclosing 't' is 'STILE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for stile that I've seen before include "Shiny plated metal" , "Fence crossing" , "Fence-crossing steps" , "Set of steps in a fence or wall" , "Steps between fields" .)