Guided, as by a little red light maybe (3)

I believe the answer is:
led
'guided' is the definition.
('lead' can be a synonym of 'guide')
'by a little red light maybe' is the wordplay.
I cannot quite see how this works, but
'little' could be 'l' (abbreviation) and 'l' is found within the answer.
The remaining letters 'ed' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'as' acts as a link.
Can you help me to learn more?
(Other definitions for led that I've seen before include "sort of light" , "was in the van" , "associated with Zeppelin" , "Something emitting light" , "Was guiding" .)
