Slight help when this is difficult to crack (4)

I believe the answer is:

hint

I'm a little stuck... Click here to teach me more about this clue!

'slight help' is the definition.
'hint' can be an answer for 'help' (thesaurus). I am not sure about the 'slight' bit.

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for hint that I've seen before include "Intimate" , "Imply, suggest" , "Indicate indirectly" , "suspicion" , "Piece of advice" .)

I've seen this clue in The Hindu.

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