Grip cold electrical appliance (5)

I believe the answer is:

clamp

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'grip' is the definition.
(I've seen this in another clue)

'cold electrical appliance' is the wordplay.
'cold' becomes 'C' (eg on taps).
'electrical appliance' becomes 'lamp' (I am not sure about this - if you are sure you should believe this answer much more).
'c'+'lamp'='CLAMP'

Can you help me to learn more?

(Other definitions for clamp that I've seen before include "Fix firmly" , "Strong fastener" , "Immobilise (wheels)" , "Secure - store for potatoes" , "Firmly press" .)

I've seen this clue in The Times.

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