Maybe cricket nets touching under cover? (2,6)
I believe the answer is:
in secret
'under cover?' is the definition.
(undercover means secret)
'maybe cricket nets touching' is the wordplay.
'maybe cricket' becomes 'insect' (cricket is an example).
'nets' means one lot of letters goes inside another.
'touching' becomes 're' (I've seen this in other clues).
'insect' going around 're' is 'IN SECRET'.
(Other definitions for in secret that I've seen before include "Covertly" , "sub rosa" , "Not openly stated" , "Confidentially" , "Without others knowing" .)