Heaved outside when attention’s needed (4)
I believe the answer is:
heed
'attention's needed' is the definition.
I can't judge whether this defines the answer.
'heaved outside' is the wordplay.
'outside' says to hollow out the word (remove centre letters).
'heaved' with its centre removed is 'HEED'.
'when' acts as a link.
Can you help me to learn more?
(Other definitions for heed that I've seen before include "Take account of" , "Caution" , "Observe" , "Take notice of" , "Take to heart" .)