How to make a bugbear go by perhaps (4)

I believe the answer is:

bogy

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'how to make a bugbear' is the definition.
I can't tell whether this defines the answer.

'go by perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'go'+'by'='goby'
'goby' is an anagram of 'BOGY'.

Can you help me to learn more?

(Other definitions for bogy that I've seen before include "Evil mischievous spirit" , "thing feared" .)

I've seen this clue in The Globe and Mail.

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