Raise more than fifty feet (4)

I believe the answer is:

lift

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'raise more' is the definition.
'lift' can be an answer for 'raise' (synonyms). I am not sure about the 'more' bit.

'fifty feet' is the wordplay.
'fifty' becomes 'li' (I've seen this in other clues).
'feet' becomes 'ft' (I've seen this in other clues).
'li'+'ft'='LIFT'

'than' acts as a link.

Can you help me to learn more?

(Other definitions for lift that I've seen before include "remove" , "Exalt" , "encouragement" , "Raise; elevator" , "Raise, elevate" .)

I've seen this clue in The Irish Independent.

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