Crossword Genius

Swell sky is not seen fully (5)

Ross

I believe the answer is:

heave

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

'swell' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for heave that I've seen before include "past Hove" , "Throw; haul by rope (naut.)" , "Produce (a sigh); retch" , "cast like this" , "Haul - retch" .)

I've seen this clue in The Hindu.
Want a hint initially instead of a full solution? Install my app