Perhaps less than inferior? (5)
I believe the answer is:
under
This might be a double definition.
'perhaps less' is the first definition.
'under' can be an answer for 'less' (I've seen this in other clues). I'm unsure of the 'perhaps' bit.
'inferior?' is the second definition.
(I've seen this before)
'than' acts as a link.
Can you help me to learn more?
(Other definitions for under that I've seen before include "Beneath or subordinate to" , "'Beneath, below (5)'" , "Managed by" , "Dylan Thomas wrote '. . . . . Milk Wood'" , "Sub" .)