Something that may give one a lift from doctor on Thursday (5)
I believe the answer is:
thumb
'something that may' is the definition.
I can't judge whether this defines the answer.
'one a lift from doctor on thursday' is the wordplay.
'one a lift from' becomes 'u' (I can't justify this - if you can you should believe this answer much more).
'doctor' becomes 'MB' (Bachelor of Medicine).
'on' is a charade indicator (letters next to each other).
'thursday' becomes 'Th' (common abbreviation).
'u'+'mb'='umb'
'umb' after 'th' is 'THUMB'.
'give' acts as a link.
Can you help me to learn more?
(Other definitions for thumb that I've seen before include "''Tom ..., the piper's son'' (nursery rhyme)" , "Stubby digit?" , "Attempt to obtain a lift" , "Tom's digital fairy tale" , "Second part of 12" .)