Note heckler's face during catcall in a way (7)
I believe the answer is:
somehow
'in a way' is the definition.
(I've seen this in another clue)
'note heckler's face during catcall' is the wordplay.
I cannot quite understand how this works, but
'note' could be 'so' (musical note) and 'so' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for somehow that I've seen before include "In an unspecified manner" , "By unspecified means" , "In a way not yet specified" , "For an unknown reason; so who, me? (anag.)" , "By one means or another" .)