Enough to finish sample (5)

I believe the answer is:

ample

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

'enough' is the definition.
(ample means enough or plenty)

'finish sample' is the wordplay.
'AMPLE' is hidden in amongst the letters.
However, I'm uncertain how the hidden word is indicated.

'to' acts as a link.

Can you help me to learn more?

(Other definitions for ample that I've seen before include "Buxom" , "Plentiful; large" , "Plentiful, quite enough" , "Large enough" , "Big" .)

I've seen this clue in The Irish Independent.

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