Tiny insect shrivels if disturbed (10)

I believe the answer is:

silverfish

I'm a little stuck... Click here to teach me more about this clue!

'tiny insect' is the definition.
'silverfish' can be an answer for 'insect' (silverfish is a kind of insect). I'm unsure of the 'tiny' bit.

'shrivels if disturbed' is the wordplay.
'disturbed' indicates an anagram (the order of letters is disturbed).
'shrivels'+'if'='shrivelsif'
'shrivelsif' anagrammed gives 'SILVERFISH'.

Can you help me to learn more?

(Other definitions for silverfish that I've seen before include "Domestic insect, bristletail" , "Household insect" .)

I've seen this clue in The Times.

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