A bloomer can bring tears (5)

I believe the answer is:

aster

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

'a bloomer' is the definition.
(aster is a kind of flowering plant)

'bring tears' is the wordplay.
'tears' anagrams to 'ASTER'.
Though, I'm not clear how the anagram is indicated.

'can' is the link.

Can you help me to learn more?

(Other definitions for aster that I've seen before include "Flowering plant; tares (anag.)" , "Daisy-like plant" , "Stare oddly at the flower" , "Tears about bright flower" , "Michaelmas daisy genus" .)

I've seen this clue in the Evening Standard.

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