Crossword Genius

Swell position for avoiding run-outs? (8)

Ross

I believe the answer is:

increase

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

'swell' is the definition.
(thesaurus)

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for increase that I've seen before include "boost" , "Make or grow larger" , "'Augment, expand (8)'" , "Add, make bigger" , "Augment or enlarge (8)." .)

I've seen this clue in the Sydney Morning Herald.
Want a hint initially instead of a full solution? Install my app