Up front, the appearance can be deceptive (6)

I believe the answer is:

facade

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

'up front' is the definition.
'facade' can be an answer for 'front' (I've seen this before). I am unsure of the 'up' bit.

I don't understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for facade that I've seen before include "ballet" , "Frontage or veneer" , "Building frontage, or sort of pretence" , "False front" , "(False) outward appearance" .)

I've seen this clue in the Evening Standard.

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