A longing for what's being dropped by EastEnders (5)

I believe the answer is:

aitch

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'what's being dropped by eastenders' is the definition.
I can't judge whether this defines the answer.

'a longing' is the wordplay.
'longing' becomes 'itch' (itch can mean a desire or longing).
'a'+'itch'='AITCH'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for aitch that I've seen before include "The letter h in full" , "what some drop?" , "the start of hives?" , "Letter sound that's often dropped?" , "8th letter of the alphabet" .)

I've seen this clue in The Guardian.

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