Check for freshness, in a way (5)
I believe the answer is:
sniff
'check for freshness in a way' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for sniff that I've seen before include "Inhale (glue); slight suspicion" , "Inhale audibly through the nose" , "Snuffle" , "Chance" , "express one's displeasure" .)