Sometimes used while cooking; pan, RO? Perhaps (5)
I believe the answer is:
apron
'sometimes used while cooking' is the definition.
I can't tell whether this definition defines the answer.
'pan ro? perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'pan'+'ro'='panro'
'panro' anagrammed gives 'APRON'.
Can you help me to learn more?
(Other definitions for apron that I've seen before include "item of clothing in the kitchen" , "Type of stage; pinny" , "item of protective clothing" , "Protective garment - part of stage" , "that's used by Oliver!?" .)