Wander about to escape tiny tormentor (6)

I believe the answer is:

gadfly

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'tiny tormentor' is the definition.
'gadfly' can be an answer for 'tormentor' (gadfly is a kind of tormentor). I'm not certain of the 'tiny' bit.

'wander about to escape' is the wordplay.
'wander about' becomes 'gad' (I've seen this in another clue).
'to escape' becomes 'fly' (I've seen this in another clue).
'gad'+'fly'='GADFLY'

Can you help me to learn more?

(Other definitions for gadfly that I've seen before include "troublemaker" , "Irritating person; insect" , "It bites livestock" , "Pestering insect" , "provocative pest" .)

I've seen this clue in The Guardian.

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