Is it half the battle getting hold of the deed? (5)
I believe the answer is:
title
'the deed?' is the definition.
('title' can be a synonym of 'deed')
'is it half the battle getting hold' is the wordplay.
'is it' becomes 't' (abbreviation. e.g. in 'tis).
'half the' indicates taking half.
'getting' is a charade indicator (letters next to each other).
'hold' becomes 'i' (I can't justify this - if you can you should give a lot more credence to this answer).
'battle' halved is 'tle'.
'tle' after 'i' is 'itle'.
't'+'itle'='TITLE'
'of' is the link.
Can you help me to learn more?
(Other definitions for title that I've seen before include "Name of film, book etc" , "What could be professor's" , "Sir, or madam" , "Right to possession" , "Right of ownership" .)