Stick a step together (5)

I believe the answer is:

paste

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

'stick' is the definition.
(as in sticking or pasting something down)

'a step together' is the wordplay.
'a step' can be anagrammed to 'PASTE'.
But, I'm not clear how this is indicated.

Can you help me to learn more?

(Other definitions for paste that I've seen before include "Fix with adhesive" , "Adhesive; imitation gem" , "Imitation gems; adhesive" , "Tapes (anag.)" , "Food for spreading or fixative" .)

I've seen this clue in the Evening Standard.

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