Being somewhat dim, perhaps, is able to get led astray (6)
I believe the answer is:
candle
'being somewhat dim perhaps' is the definition.
I can't judge whether this definition defines the answer.
'able to get led astray' is the wordplay.
'able' becomes 'can' ().
'to get' means one lot of letters goes inside another.
'astray' is an anagram indicator.
'led' with letters rearranged gives 'dle'.
'can' placed into 'dle' is 'CANDLE'.
'is' is the link.
Can you help me to learn more?
(Other definitions for candle that I've seen before include "something wicked" , "See 8" , "Wicked light" , "Wax cylinder" , "Wax or tallow light" .)