In France, a schoolboy, first and last, is feeling awkward (6)
I believe the answer is:
uneasy
'awkward' is the definition.
(I've seen this before)
'in france a schoolboy first and last is feeling' is the wordplay.
'in france' becomes 'un' (I've seen this in other clues).
'schoolboy first' becomes 's' (yst letter of 'schoolboy').
'and' means one lot of letters go next to another.
'last' becomes 'e' (I've seen this in other clues).
'is feeling' becomes 'y' (I can't justify this - if you can you should believe this answer much more).
'a'+'s'='as'
'as' after 'e' is 'eas'.
'un'+'eas'+'y'='UNEASY'
Can you help me to learn more?
(Other definitions for uneasy that I've seen before include "Restless or worried" , "Disturbed" , "'Nervous, unsettled (6)'" , "Anxious, nervous" , "Feeling troubled or uncomfortable" .)