The most common and most likely answer to this crossword clue is the 4 plus 2 letter word PICK UP
I've seen this crossword clue in The Sunday Telegraph
P
I
C
K
U
P
More clues leading to the result PICK UP
Buddy explains!
The straight part
We know that "rally" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case rally = pick up.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does PICK UP mean?
PICK UP noun- An electronic device for detecting sound, vibration, etc., such as one fitted to an electric guitar or record player.
- A pickup truck.
- (usually attributive) Impromptu or ad hoc, especially of sports games and teams made up of randomly selected players.
- An instance of approaching someone and engaging in romantic flirtation and courting with the intent to pursue romance, a date, or a sexual encounter. See also pick-up line, pick-up joint, pickup artist.
- A person successfully approached in this manner for romance or sex.
- In various games, the fielding or hitting of a ball just after it strikes the ground.
- An item that can be picked up by the player, conferring some benefit or effect; a power-up.
- The act of a challenging party or candidate winning an electoral district held by an incumbent party or candidate. See also gain
- The act of answering a telephone.
- A relatively minor shot filmed or recorded after the fact to augment previous footage.
- The act of collecting and taking away something or someone, usually in a vehicle.