Each student's heading into college lobby, not content with Labour (8)
I believe the answer is:
uneasily
'each' is the definition.
Both the answer and definition are adverbs. Perhaps you can see an association between them that I don't see?
I can't explain the remainder of the clue.
Can you help me to learn more?
(Other definitions for uneasily that I've seen before include "In apprehensive manner" , "With anxiety or apprehension" , "Hardly so, you might think" , "In nervous way" , "In worried way, lacking in confidence" .)