Without pressure, look into cricket perhaps (6)
I believe the answer is:
insect
'cricket perhaps' is the definition.
(cricket is an example)
'without pressure look into' is the wordplay.
'without' is a deletion indicator.
'pressure' becomes 'p' (scientific abbreviation).
'look into' becomes 'inspect' (I've seen this before).
'inspect' with 'p' taken out is 'INSECT'.
(Other definitions for insect that I've seen before include "Eg, beetle or fly" , "Contemptible person" , "Small animal with six legs" , "Small creature with six legs and no backbone" , "cricket, maybe" .)